To multiply 4 by 8 using doubles, you double the numbers sequentially (4 to 8, 8 to 16, 16 to 32) to reach the desired result of 32. Moreover, when comparing the area of two squares, where one has a side length that is double the other, the area of the larger square is four times that of the smaller square.
Explanation:To multiply 4 by 8 using doubles, you can double 4 to get 8, and then double 8 to get 16, and then double again to get 32. So essentially, you've found that 4 x 2 = 8, then took that result and found 8 x 2 = 16, and finally, you took that result and found 16 x 2 = 32, which is the same as 4 x 8. This method of doubling allows you to use simpler multiplication facts you may already know well, like multiplying by 2, to find the answer to more complicated problems.
In the context of scale factors and area comparisons, if you have a square with a side of 4 inches, and another square with sides twice as long (4 inches x 2 = 8 inches), the area of the second square would be 8 inches x 8 inches, which is 64 square inches. Compared to the first square, which has an area of 4 inches x 4 inches (16 square inches), the second square is larger by a factor of four (64 / 16 = 4). This demonstrates how the area increases by the square of the scale factor, not just by the scale factor itself.
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Solve for P.
4p = 1/2
Answer:
1/8
Step-by-step explanation:
You need to find P not 4p so you divide 4p by 4 to get P and by doing this you have to divide the other side too. so now you got 4p/4 = 1/2/4 which = p=1/8
what theorems/ info about proportional parts in triangle and parallel lines should I use to find the missing length of a triangle? how should I set up an equation? Please explain with details, I will be so grateful.
a go carts too speed is 607200 feet per hour. what is the speed in mph?
Find the quotient of 1.2 divided by 251.2 show your work
After divide, the quotient of 1.2 divided by 251.2 is 0.004777.
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
⇒ 1.2 divided by 251.2
Solve this as;
⇒ 1.2 ÷ 251.2
⇒ 0.004777
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I NEED HELP WITH 2 QUESTIONS I WILL MAKE SOME THAT GETS THEM CORRECT THE BRAINIEST, THANKS, AND RATE
Peter earned $180 working at a store during the summer months. He bought 4 books worth $12 each from his earnings at the store. How much money was left after he bought the books?
A$33
B$42
C$132
D$228
Tom bought 5 t-shirts from a store. After he bought the t-shirts, his account balance showed a change of –$65.25. What would have been the change to Tom's account balance had he only bought 1 t-shirt from the store?
A$13.05
B–$13.05
C$13.50
D–$13.50
Answer:
1. The correct answer choice is C $132.
2. The correct answer choice is B -$13.05
Step-by-step explanation:
1. 12 x 4 = 48.
180 - 48 = 132
2. -65.25/5 = -13.05
Yes, I know this is already answer.
Also, I took the test :)
Have a good day!
Write addition fact that helps you to solve 12-4
Mr. Rivas bought a can paint. he used 3/8 of it to paint a bookshelf. he used 1/4 of it to paint a wagon. he used some of it to paint a birdhouse and has 1/8 of the paint left. how much paint did he use for he birdhouse
what is the meaning of term
One serving of milk has 120 calories. If one serving is equal to one cup how many calories are in one fluid ounce. 1 Cup = 1 fluid ounce
A. 10
B. 12
C. 16
D. 15
Trampoline Park has an admission fee, plus an hourly fee of $4.50. Determine the admission fee that the trampoline park charges. What is the initial value?
The initial value of a function is when x = 0. The initial value of the Trampoline Park is $5.00
Given that:
[tex](x_1,y_1) \to (3,18.5)[/tex]
[tex]m = 4.50[/tex] ---- the rates
The equation is calculated using:
[tex]y = m(x - x_1) + y_1[/tex]
So, we have:
[tex]y = 4.50(x - 3) + 18.5[/tex]
Open bracket
[tex]y = 4.50x - 13.5 + 18.5[/tex]
[tex]y = 4.50x + 5.00[/tex]
The initial value is when [tex]x=0[/tex]
So, we have:
[tex]y = 4.50 \times 0 + 5.00[/tex]
[tex]y = 5.00[/tex]
Hence, the initial value is $5.00
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If r = 5 units and x = 7 units, then what is the volume of the cylinder shown above?
A.
175 cubic units
B.
35 cubic units
C.
120 cubic units
D.
700 cubic units
Answer:
175 cubic units
Have a good day.
How many numbers from 1 to 100 can be divided by 2 with none leftover.
how many tenths are there in 4/5
I WILL PICK THE BRAINLIEST FOR WHOEVER HAS THE CORRECT ANSWER!
jamal works in a city and sometimes takes a taxi to work. The taxicabs charge $1.50 for the first 1/5 mile and $0.25 for each additional 1/5 mile. Jamal has only $3.75 in his pocket. What is the maximum distance he can travel by taxi if he does not tip the driver?
Can someone help with this question please?
Karen is writing a word problem that can be represented by the equation 2x + 3 = 13.
A bucket weights 2 grams and balls are put into it that each weight 3 grams. The total weight of the bucket and balls is 13 grams. How many balls are in the bucket?
Does her word problem fit the equation? Justify your response.
Please help it's due tommorow!! I need answers for questions 29-40
A CD player is on sale for $90 at an electronics store. If the original price was $125, what was the percent of discount
what are two ways to write 0.9 as a fraction
your friend has owned a dog for 9 years. This is one year less than twice as long as he has owned a cat. How long has your friend owned a cat? write and solve an eqaution
nadia has 4 sheets of stickers there are 8 stickers on each sheet .she wrote this number sentence to represent the totel number of stickers
Answer:32
Step-by-step explanation:
This question requires multiplying.
Think of 4 sheets as 4 groups. If there are 8 stickers in the first group, we still have 8, then we will add 8 to the second group. We will have 16. Next we will add 8 to third the third group, 24, and third to the fourth group which will give us 32. 8,16,24,32.
Our equation will be 8×4=32
estimate 4 divided by 1165
3/4-1/4=
1/2+3/8=
6 1/2-2 1/2=
3 1/2-1 1/8=
Hank cut a cake into 12 equal pieces. He ate 2/12 pieces. He has 10/12 of the cake left to serve on plates. What part of the cake did he put on each plate.
What is the approximate percent decrease when a fish count goes down from 850 to 500?
Answer:
About 40%
Step-by-step explanation:
It would normally be 41.--% But rounded is the approximate percent so it would be 40%. I hope this helps you! :)
Answer: 41%
Step-by-step explanation:
The change in fish count = [tex]850-500=350[/tex]
The percent decrease when a fish count goes down from 850 to 500 is given by :-
[tex]\text{Percent decrease}=\frac{\text{Change in fish count}}{\text{Previous fish count}}\times100\\\\\Rightarrow\text{Percent decrease}=\frac{350}{850}\times100\\\\\Rightarrow\text{Percent decrease}=41.176470588\%\approx41\%[/tex]
Hence, the approximate percent decrease when a fish count goes down from 850 to 500= 41%
Triangle XYZ is similar to triangle RST what is the perimeter of triangle RST
The perimeter of triangle RST is B) 56.25 units. Therefore, the correct answer is B) 56.25 units.
The perimeter of a triangle is the sum of the lengths of its sides.
Since triangle XYZ is similar to triangle RST, the ratio of the corresponding sides of the two triangles is the same.
Therefore, we can set up the following proportion:
XY / XZ = RS / RT
Substituting the known values, we get:
15 / 4 = RS / RT
Multiplying both sides by RT, we get:
15 = RS * RT
We also know that the sum of the angles in a triangle is 180 degrees. Therefore, we can set up the following equation:
90 + ∠RST + ∠SRT = 180
Substituting the fact that triangle XYZ is similar to triangle RST, we get:
90 + ∠XYZ + ∠XZY = 180
Substituting the known values, we get:
90 + 30 + 60 = 180
Therefore, ∠RST = 60 degrees.
Now that we know the lengths of two sides of triangle RST and the measure of one angle, we can use the law of cosines to find the length of the third side:
RT^2 = RS^2 + ST^2 - 2 * RS * ST * cos(∠RST)
Substituting the known values, we get:
RT^2 = 15^2 + ST^2 - 2 * 15 * ST * cos(60 degrees)
Simplifying, we get:
RT^2 = 225 + ST^2 - 15ST
We also know that the perimeter of triangle RST is equal to the sum of the lengths of its sides:
Perimeter = RS + RT + ST
Substituting the fact that triangle XYZ is similar to triangle RST, we get:
Perimeter = 15 + RT + ST
Now that we know the length of RT and the fact that the perimeter of triangle RST is equal to the sum of the lengths of its sides, we can substitute these values into the equation for the perimeter to find the length of the third side, ST:
Perimeter = 15 + RT + ST
ST = Perimeter - 15 - RT
ST = 56.25 - 15 - 37.5
ST = 3.75
Therefore, the perimeter of triangle RST is:
Perimeter = RS + RT + ST
Perimeter = 15 + 37.5 + 3.75
Perimeter = 56.25
Therefore, the correct answer is B) 56.25 units.
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Question
Triangle XYZ is similar to triangle RST.
Side lengths:
XY = 15 units
XZ = 4 units
YZ = 6 units
Angle measures:
∠X = 90°
What is the perimeter of triangle RST?
A) 45 units
B) 56.25 units
C) 37.5 units
D) 15 units
How do you write this equation "at a concert,you purchase 3 T-shirts and a concert program for a total cost of $90.The program cost $15 and the T-shirts all cost the same.Write and solve an equation to find the cost of one T-shirt."
How do i solve? 2/3h = -9
5 1/3-w= 4
These problems confuse me so much.
Elaine bought 3 4/5 pounds of Apple's for 1.99 per pound. 3/4 pound of pears for2.25 per pound, and 3 2/3 pound of bananas for 1 .75 per pound. If Elaine brought a 20 dollar bill to the store, how much change did she get?