workout 3(-a + 2a - 4)= -5

Answers

Answer 1
Let's solve your equation step-by-step.3(−a+2a−4)=−5Step 1: Simplify both sides of the equation.3(−a+2a−4)=−5(3)(−a)+(3)(2a)+(3)(−4)=−5(Distribute)−3a+6a+−12=−5(−3a+6a)+(−12)=−5(Combine Like Terms)3a+−12=−53a−12=−5Step 2: Add 12 to both sides.3a−12+12=−5+123a=7Step 3: Divide both sides by 3.3a/3=7/3a=7/3Answer:a=7/3
Answer 2
3(-a+2a-4)=-5
3(-a)+3(2a)-3(4)=-5
-3a+6a-12=-5
             +12 +12
-3a+6a= 3a
3a=7
---  ---
3     3
a=2.3

Related Questions

Tatiana wants to give friendship bracelets to her 323232 classmates. She already has 555 bracelets, and she can buy more bracelets in packages of 444.

Answers

She needs 444 more packages exactly to have enough bracelets for everyone

Answer:

5+4p ≥ 32

No

Step-by-step explanation:

I promise this is the answer

Round off 3.974 to the nearest cent

Answers

3.97, 4  is less than 5 so you round down, and you should round to the nearest hundredths

rosa scored 174,325 points a games to the nearest ten thousand

Answers

174325 rounded to the nearest ten thousand is 170,000

hope this helps

Explain how to estimate 368 plus 231 in two different ways

Answers

300 plus 200, 370 plus 230. Hoped this helps you!

Rewrite (10+3)5 using the Distributive Property. Then simplify.

Answers

I'm pretty sure it would be 50+15 because 5x3 is 15 and 5x10 is 50... correct me if I'm wrong

Answer:

[tex]\huge\boxed{\boxed{\tt{65\::)}}}[/tex]

Step-by-step explanation:

Hello.

First, add 10+3.

The sum is 13.

Now, multiply that by 5.

13×5=65

And we're done!

I hope it helps & have an outstanding day! :)

~ST2710 :)

What is u + v + w when u = –10, v = 4, and w = 8? (7th grade math ._.)
A.–22
B.2
C.14
D.22

Answers

The answer is B.2.

-10 + 4 = -6. -6 + 8 = 2
It's hard I totally get it! So you substitute in all of the numbers for the variables. So -10 for u and so on. That gives you -10+4+8, which equals B.2 does that make sense? Do you have any other questions?

What is value of the digit 5 in the number 75

Answers

It is in the ones place if that is what you're talking about either that or the value of 5 is 5 

First, think of your places. You have the ones places, tens places, hundreds places, and so on. 

The first number starting from the right is the ones, and as you keep going left, the value of each given digit becomes higher.

Since 5 is in the ones place, its value would be just 5. If it were in the tens place, it would be 50. If it were in the hundreds place, it would be 500, and so on. 

Think of it this way;

Ones is just one. If a number is in the 'ones' place, its value would be a single digit. If it were in the tens place, its value would be two digits. 
That's how it would be for each place going left. 
Every number you move to the left, its value gains a one.

So here's an example: 
5555

The value of 5 in the ones place "5555" is simply 5.

In the tens place, you end up adding one zero, so the value of the second five to the left would be, "50"

So with that said, the value of the digit 5 in the number 75 is 5.

Haha, hope this cleared up any confusion, and have a wonderful day! :)

Evaluate 4-2f when f=1

Answers

the answer is 2 ....
.. 
First substitute f for 1 a number and a variable together means multiplication. 4-2*1
Multiplication is first so (2*1=2) which brings us to 4-2.
Subtract 4-2=2
Answer: 2

Can a cube with a volume of 4 cubic feet fit in a bookshelf that is 12 inches tall?

Answers

If the cube has a volume of 4 cubic feet, the dimensions are the cube root of 4 feet, which is about 1.587 feet. In inches, it is about 19, so it wont fit.

Hope this helps!

A ball is dropped from a height of 48 feet. Each time the ball bounces, it travels back up half the distance from which it fell. How many feet has the ball traveled when it hits the ground from the fifth time?

Answers

1st drop : 48
1st bounce:24
2nd drop : 12
2nd bounce: 6 and so on and so forth:

This is a geometric progression with 1st term a = 48 and common ratio r= 1/2

The sum of all terms in a G.P is 

S=a(1 - rⁿ⁻¹)/(1-r), 
S = 48(1 - r⁴)/(1-r). Replace r by 1/2
S = 48[1-(1/2)⁴]/(1/2)

S = 90 ft


Is 9r+16=π/5 a literal equation?

Answers

The given equation is

   [tex]\rightarrow 9r+16=\frac{\pi}{5}[/tex]

The value of π is 3.14 or [tex]\frac{22}{7}[/tex] that is a fixed Value.

   [tex]\rightarrow 9r +16=\frac{3.14}{5}\\\\9r+16=0.628\\\\9r=0.628-16\\\\9r=-15.372\\\\r=\frac{-15.372}{9}\\\\r=-1.708[/tex]

So, the given equation is Literal ,because variable value is Known.

A literal equation is an equation that has at least one letter or one unknown variable.

[tex]9r + 16= \frac \pi 5[/tex] is a literal equation because it has letter r

Given that:

[tex]9r + 16= \frac \pi 5[/tex]

By analyzing the equation, we have:

[tex]9, 16, 5 \to[/tex] number

[tex]r \to[/tex] letter

[tex]\pi \to[/tex] constant

Because r is a letter, then the equation is a literal equation

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Explain how to find the greatest common factor of three numbers

Answers

1. Break each number down to its prime factors.
2. Select all factors each number has in common.
3. Multiply all those together. That's the greatest common factor.

how could u demonstrate that there are 1,000 millimeters in 1 meter

Answers

milli- = one thousand
I × I,OOO = I,OOO

Answer:

There are 1000 millimeters in a meter.

Starting from lower scale that is, centimeter, decimeter and then meter

1 cm = 10 mm

1 dm = 10 cm

And 1 meter = 10 dm

So, when you go up to mm from meter, we will do [tex]10^{3}[/tex] to get the relation between meter and mm.

Hence, 1 meter = [tex]10\times10\times10=1000[/tex] millimeters.

If g(x) = x2, which expression is equal to g(x + 1)

1

x2 + 1

x2 + 2x +1

x2 - x

Answers

Insert x + 1 into where the x is located in x2. Also I assume x2 = [tex]x^2[/tex]

[tex]x^2[/tex]
[tex](x + 1)^2[/tex]
[tex]x^2 + 2x + 1[/tex] <----Answer
Final answer:

To find g(x+1) for the function g(x)=x^2, you substitute x+1 into the function to get (x+1)^2, which expands to x^2 + 2x + 1.

Explanation:

The function given is g(x) = x^2. To find g(x + 1), you just need to substitute x + 1 into the function where x is. So, g(x + 1) = (x + 1)^2. If we expand this, it becomes x^2 + 2x + 1.

Therefore, the expression that is equal to g(x + 1) is x^2 + 2x + 1.

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How to do $15.78 in money word form

Answers

fifteen dollars and seventy-eight cents 
Fifteen dollars and seventy eight

What is one and eighty-two hundredths added to fifteen and two-tenths

Answers

15.2 + 1.82 = 17.02

The answer is 17.02. Hoped that helped!

What’s w = 2hx - 11x ? Solving for x.

Answers

w = 2hx - 11x

w = x(2h-11) 
 
    w 
---------- = x 
2h - 11 

Answer:

[tex]x=\frac{w}{2h-11}[/tex]

Step-by-step explanation:

Given equation,

w = 2hx - 11x,

⇒ 2hx - 11x = w

The steps for solving this equation for x are as follows,

Step 1 : By the converse of distributive property,

x(2h-11) = w

Step 2 : Isolate x in the left side of the equation by dividing both sides by 2h - 11 ( Division property of equality )

[tex]x=\frac{w}{2h-11}[/tex]

carrie can type 787 words in 12 minutes. and heather can type 1020 words in 15 minutes. who can type the fastest?

Answers

All we need to do is find out how many words they can both type per minute, WHICH we can do byyy:

Carrie:

787 / 12 = 65 (It's actually a decimal but we're just gonna keep it at 65)

Heather:

1020 / 15 = 68


SO, Heather can type 68 words per minute whereas Carrie can only type 65. Meaning Heather can type faster :D

Heather can type the fastest. Comparing the two rates, we can see that Heather's rate of 68 words per minute is higher than Carrie's rate of 65.5833 words per minute.

To determine who can type the fastest, we need to calculate the typing rate in words per minute for both Carrie and Heather.

First, let's calculate Carrie's typing rate:

Carrie can type 787 words in 12 minutes. To find out how many words she can type per minute, we divide the number of words by the number of minutes.

[tex]\[ \text{Carrie's rate} = \frac{787 \text{ words}}{12 \text{ minutes}} \] \[ \text{Carrie's rate} = 65.5833 \text{ words per minute} \][/tex]

Next, let's calculate Heather's typing rate:

Heather can type 1020 words in 15 minutes. Similarly, we divide the number of words by the number of minutes to find her rate.

[tex]\[ \text{Heather's rate} = \frac{1020 \text{ words}}{15 \text{ minutes}} \] \[ \text{Heather's rate} = 68 \text{ words per minute} \][/tex]

Therefore, Heather can type the fastest.

Write an equation and solve. If four times Catherine’s age is subtracted from 5 times Jose’s age, the difference is 32 years. Jose is sixteen. Find Catherine’s age.

Answers

4x-5j=32 jose is 16 so 4x-5*16=32 4x-80=32 4x=112 4x/4=112/4 x=28

Denise has 6 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down. If she runs at a speed of 7mph and walks back at a speed of 3mph, how long should she plan to spend walking back?

Answers

Final answer:

Denise should plan to spend around 4.2 hours walking back after running. This is calculated using the concept of time = distance / speed and sum of the times, with the total time, running speed and walking speed given as 6 hours, 7 mph, and 3 mph, respectively.

Explanation:

To answer the question 'How long should Denise plan to spend walking back?' we can start by finding the time she spends running. We know that Denise has 6 hours to spend training for an upcoming race. We also know that she runs at a speed of 7mph and walks back at a speed of 3mph.

The total time spent running and walking is 6 hours. To find the running time, we should know that time = distance / speed. However, we don't have the distance. But since the distance ran is equal to the distance walked back, we can use the concept of time = distance / speed and sum of times to solve it.

We can denote the distance by D, thus the time spent running is D/7 and the time walking back is D/3. Adding these times should equal 6 hours.

Putting this into an equation: D/7 + D/3 = 6.

We solve this equation to find D, and find the time spent walking back by substituting D back into D/3. Which gives us about 4.2 hours. So, Denise should plan to spend about 4.2 hours walking back after her run.

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How is the number five thousands and eighty-five thousandths written in decimal form?
A) 5000.0085
B) 500.00085
C) 5000.085
D) 5000.85
I chose answer C. Is this correct?

Answers

A.)5000.0085

.0-tenth place
.00-hundreth
.000-thousanth
Final answer:

The decimal form of 'five thousands and eighty-five thousandths' is 5000.085. Therefore, your answer choice C) 5000.085 is correct.

Explanation:

The decimal number 5000.085 can be understood as a combination of two distinct parts: the whole number component, 5000, signifies 'five thousands,' representing a quantity in the thousands place, and the fractional part, 0.085, signifies 'eighty-five thousandths,' indicating a value less than one but greater than zero. When these two components are integrated, the number 5000.085 emerges, illustrating a precise quantity with both an integral and fractional significance. This understanding showcases the inherent nature of decimal notation, where whole numbers and fractional values harmoniously coexist, providing a comprehensive representation of numerical quantities.

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What is the angular velocity of a 6-foot pendulum that takes 3 seconds to complete an arc of 14.13 feet? Use 3.14 for pi

Answers

Angular velocity refers to the rate of change of angular displacement of a particle in a given time. The value of angular velocity specifies the rotational speed with which an object is travelling on its axis.
Mathematically, angular velocity, W = D/T,
Where D is the change in angular displacement and T is the time taken. 
From the question given, 
T = 3 second
The arc of the circle is 14.13 feet
The diameter of the circle is 12 foot.
The circumference of the circle is diameter * Pi = 12 * 3.14 = 37.7 feet.
14.13/37.7 = 0.3748
0.3748 * 360 degree = 134.93
134.93/3 = 45
Thus, the angular velocity is 45 degree/second.


Answers:

a
[1] Vertical Angle Theorem[2] Converse of Same Side Interior Angle Theorem
b
[1] Vertical Angle Theorem [2] Same Side Interior Angle Theorem
c
[1] Vertical Angle Theorem [2] Converse of Same Side Exterior Angle Theorem
d
[1] Converse of Same Side Interior Angle Theorem[2] Vertical Angle Theorem

Answers

[1] = Vertical Angle Theorem
[2] = Converse of the same side interior angle theorem

The answer is A!

Hope this helps! :)
The answer is A!
Hope that helps!

A water bottle holds 3 1/3 c of water. A bowl holds 2 1/4 times the amount in the water bottle. How much water does the bowl hold? Express your answer as a mixed number in the simplest form.

Answers

First you would put both numbers into improper fractions.

3 1/3 = 10/3 and 2 1/4 = 9/4

Multiply 10/3 * 9/4

10*9 = 90 and 3 * 4 =12

So 90/12 is your fraction. Reduce it, 7 6/12

7 6/12 = 7 1/2

So your answer is 7 1/2

Hope I helped :)

Answer: 7/100

Step-by-step explanation:

Count with yo Hands fool

A wheelchair access ramp has an angle of elevation of 18°. If the ramp reaches the top of a 26 inch high porch, how long is the ramp

Answers

draw diagarm

we want to know the hyptohuse
use cos

cos(x)=opositeside/hhyptohuse
hypothuse=length of ramp

cos(18°)=26/?
times both sides by ?
?cos(18°)=26
divide both sides by cos(18°)
?=26/(cos(18°))
use your calculator
?=27.338in

the ramp is about 27in

anita says ray CD can also be called ray dc. do you agree?

Answers

No because in a ray C is the point at the segment and D refers to another point on the ray. The segment end point cannot be confused with the line portion of the ray.

Hope this helps!! :)

Consider the following multistep word problem:
The sum of the ages of a brother and sister is 20. If four times the brother's age is subtracted from three times the sister's age, the difference is 25.

Answers

there is no question,it's just a statement

please help me solve this maths problem ☺

Answers

lets
h =# of hens in the filed and c = # of cows in the field

hens and cows have 50 heads
h + c = 50 (1)

hens and cows have 180 legs (hen has  2 legs and cow has 4 legs)
2h + 4c  = 180 (2)

From equation (1) h + c = 50 ----> h = 50 - c

substitute h = 50 - c into 2h + 4c  = 180 (
2h + 4c  =180 
2(50 - c) + 4c = 180
100 - 2c + 4c = 180
2c = 180 - 100
2c = 80
  c = 40

2h + 4(40)  = 180
2h + 160 = 180
2h = 20
  h = 10

answer
hens = 10 and cows = 40

double check:
heads: 10 hens + 40 cows = 50 total
legs:10(2) + 40(4) = 20 + 160 = 180

Answer:

lets

h =# of hens in the filed and c = # of cows in

the field

hens and cows have 50 heads

h + c = 50 (1)

hens and cows have 180 legs (hen has 2

legs and cow has 4 legs)

2h+4c180 (2)

From equation (1) h + c = 50 ----> h = 50 - c

substitute h = 50 c into 2h + 4c = 180 (

-

2h+4c 180

2(50-c) + 4c = 180

1002c+ 4c = 180

2c 180-100

2c=80

C = 40

2h + 4(40) = 180

2h+160 180

2h = 20

h = 10

answer

hens = 10 and cows = 40

double check:

heads: 10 hens + 40 cows = 50 total legs:10(2) + 40(4) = 20 + 160 = 180

The bus driver made 6 stops on his way into town. No passengers exited the bus. By stop 3, there were 9 passengers on the bus. This graph shows this information.

How many stops did it take to have 13 passengers on the bus?
a.2
b.3
c.4
d.5

Answers

C.
X = 4 (x being the stops)
Y= 13 (passengers) 
also the 4th point across.

:)

A weightlifter holds a 1,700 N barbell 1 meter above the ground. One end of a 2-meter-long chain hangs from the center of the barbell. The chain has a total weight of 500 N. How much work (in J) is required to lift the barbell to a height of 2 m

Answers

Final answer:

The work required to lift the barbell to a height of 2 m is 1,700 J.

Explanation:

To calculate the work required to lift the barbell to a height of 2 m, we need to consider the gravitational potential energy. The work done is equal to the change in potential energy.

The initial potential energy of the barbell is equal to its weight multiplied by the initial height, which is 1,700 N * 1 m = 1,700 J.

The final potential energy of the barbell is equal to its weight multiplied by the final height, which is 1,700 N * 2 m = 3,400 J.

Therefore, the work required to lift the barbell to a height of 2 m is 3,400 J - 1,700 J = 1,700 J.

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