(3c + 2) + 4(1.3c - 5)
20 points
please help
in return brainliest and special thanks
One tray holds eight sandwiches if there are 30 sandwiches in all, how many trays are needed?
Heidi stops at three water stations during the running race. She drinks 0.25 liters of water at the first stop, 0.3 liters at the second stop, and 0.37 liters at the third stop. How much water does she consume throughout the race?
Adam has $300 to donate.For the next five weeks he donates $60 each week to a different charity. His remaining donation money can be shown by a sequence.
Jordan has 5.48 milliliters of liquid in one test tube and 9.63 milliliters in another. Luke's test tube has 17.24 milliliters of liquid.
How much more liquid is in Luke's test tube than the liquid in Jordan's two test tubes combined?
2.13 mL
4.15 mL
7.61 mL
15.11 mL
You are visiting Washington, D.C. From the American History Museum you walk 5 blocks east and 1 block south to the Air and Space Museum. Then you walk 8 blocks west to the Washington Monument. Where is the Washington Monument in relation to the American History Museum?
Final answer:
The Washington Monument is 3 blocks west of the American History Museum, after making the described movements starting from the museum.
Explanation:
To determine the relative position of the Washington Monument to the American History Museum, let's track the movements step by step. Starting from the American History Museum, if you walk 5 blocks east and then 1 block south, you arrive at the Air and Space Museum. From there, if you walk 8 blocks west, you will reach the Washington Monument.
Now, since you've walked 5 blocks east initially and then 8 blocks back west from the Air and Space Museum, you've ended up 3 blocks west of your starting position at the American History Museum (because 5 - 8 = -3). The 1 block south movement does not affect the east-west positioning. Therefore, the Washington Monument is 3 blocks west of the American History Museum.
A gallon of gasoline costs $2.96 your car has a 25- gallon gas tank and can travel 28.8 miles one each gallon of gasoline find the cost of filling your gas tank if it’s already 3/8 full
To find the cost of filling the gas tank, calculate the empty part of the tank, which is 5/8 of 25 gallons. Then multiply that by the cost of a gallon of gasoline, which gives you $46.25.
Explanation:To solve this problem, we need to calculate how much gasoline is needed to fill up the car's tank considering that it's already 3/8 full and then multiply that by the cost of gasoline per gallon.
Firstly, we need to find out how much of the tank's capacity is empty. The tank has a total capacity of 25 gallons and 3/8 of it is already full. This means 5/8 of the tank is empty. The empty capacity is 5/8 * 25 = 15.625 gallons.
Given that a gallon of gasoline costs $2.96, we need to multiply the cost per gallon by the number of gallons needed. Therefore, the cost to fill the tank equals to 2.96 * 15.625 = $46.25.
Learn more about Cost Calculation here:https://brainly.com/question/33521342
#SPJ12
what is 1.75t-4.5=7.75
How many times does 7 go into 5? The remainder is 5.
At a school, 20% of the sixth-grade students are in the band. There are 22 sixth-grade students in the band. How many sixth-graders are in the school?
This is a mathematics problem about percentages. It tells us that 20% of the total number of sixth-grade students equals 22 students who are in the band. By setting up and solving a simple equation, we find that there are 110 sixth-grade students in the school.
Explanation:The subject of your question is Mathematics. This problem is about percentages and can be solved by setting up an equation based on the given information.
It says that 20% which is (0.20 in decimal form) of the total number of sixth-grade students equals the 22 students who are in the band. Let's denote the total number of sixth-grade students by X.
Your equation will look like this: 0.20 × X = 22
To solve for X, divide both sides of the equation by 0.20:
X = 22 / 0.20
Therefore, X = 110.
So, there are 110 sixth-grade students in the school.
Learn more about Percentages here:https://brainly.com/question/29306119
#SPJ12
Which of the following is an equivalent form of the mixed number -12 3/4
Answer: - 51/4
Step-by-step explanation:
Graph y=47x−2 .
Use the line tool and select two points on the line.
Sharon is 54 inches tall. A tree in her backyard is 5 times as tall as she is. The floor of her treehouse is at a height that is twice as tall as she is. What is the difference, in inches between the top of the tree and the floor of the treehouse
Which of the following masses is the smallest? 400 milligrams 55 grams .9 centigrams .65 kilogram
I NEED HELP ASAPLouise bought 1 1/4 pounds of roast beef at $2.00 per pound and 2 1/2 pounds of turkey at $1.50 per pound. What was her total cost? Enter your answer in the box. $
multiply price by amount bought for each then add them
roast beef: 2.00 * 1.25 = $2.50
turkey: 1.50 * 2.5 = $3.75
3.75 + 2.50 = $6.25 total cost
What is the unit rate for 501.9 mi in 21 h? Enter your answer, as a decimal, in the box
The required unit rate is given as 23.9 mi per h.
Given that,
To determine the unit rate of the given 501.9 mi in 21 h,
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
Unit rate is given as,
Rate = 501.9/21 = 23.9 mi per h
Thus, the required unit rate is given as 23.9 mi per h.
Learn more about unit rates here:
https://brainly.com/question/13795269
#SPJ5
Mary wants to go on a trip to Washington D.C which will cost $800. She has saved $48 so far. What percentage of the total amount needed has she saved?
The Leukemia and Lymphoma Society sponsors a 5K race to raise money. It receives $55 per race entry and $10,000 in donations, but it must spend $15 per race to cover the cost of the race.
Write and solve an inequality to determine the number of race entries the charity needs to raise at least $55,000.
Show your work.
race entry costs 55, they use 15 of it to cover costs so they get 55-15 = 40 per entry
x = race entries
equation becomes 55000>= 40x +10000
45000>= 40x
x >= 45000/40 >= 1125
they need at least 1125 race entries to make $55,000
Sara pays $11 for 2.75 pounds of cheese.what is the cost per pound
you just need to divide 11 by 2.75 which would be $4
a wise man once said 300 reduced by 3 times my age is 114
To solve the equation, assume the person's age is 'x', then translate the sentence into an equation: 300 - 3x = 114. Isolate the variable by subtracting 300 from both sides, then divide both sides by -3 to find 'x'. The person's age is 62.
Explanation:The subject of this question is Mathematics. Specifically, it involves solving an equation to determine the age of the person mentioned in the quote.
To solve the equation, let's assume the person's age is 'x'. Then, we can translate the sentence '300 reduced by 3 times my age is 114' into the equation: 300 - 3x = 114.
To solve for 'x', we can isolate the variable by subtracting 300 from both sides of the equation, giving us -3x = -186. Finally, dividing both sides by -3, we find that x = 62. Therefore, the person's age is 62.
suppose you pay $15 per hour to go horseback riding you ride 2 hours today and plan to ride for more hours this weekend
a: write two more different expressions to find the total cost of horseback riding
b: find the total cost
A poster is 8 1/2 inches by 11 inches you enlarge the poster by increasing each dimension by a factor of 2 1/2 what is the area of the new poster
Answer:
Area of the new poster = 584.375 inch²
Step-by-step explanation:
Length of old poster = 8 1/2 inches = 8.5 inches
Breadth of old poster = 11 inches
Scale factor = 2 1/2 = 2.5
Length of new poster = 8.5 x 2.5 = 21.25 inch
Breadth of new poster = 11 x 2.5 = 27.5 inch
Area of new poster = 21.25 x 27.5 = 584.375 inch²
Area of the new poster = 584.375 inch²
about 3/4 of the students on the track team are girls. about 3/4 of these girls are in grade 8. what fraction on the track team are grade 8 girls?
Given that 3/4 of a track team are girls and 3/4 of these girls are in 8th grade, we can multiply the two fractions to find the fraction of the whole track team that are 8th-grade girls, which is 9/16.
Explanation:The question involves two instances of finding 3/4 of a group. Initially, we are given a track team and we are told that 3/4 of the team are girls. If we let the total number of students in the team equal 1 (or 100%), then the fraction representing the girls is 3/4. Further, 3/4 of these girls are in 8th grade. Therefore, to find the fraction of 8th-grade girls out of the whole team, we multiply the two fractions together as follows: 3/4 * 3/4 = 9/16. This means that 9 out of 16 students are 8th-grade girls, assuming that the track team consists of 16 students. If the track team doesn't consist of 16 students, we can interpret the 9 out of 16 as a ratio.
Learn more about Fractions here:https://brainly.com/question/10354322
#SPJ12
The fraction of the track team that are grade 8 girls is [tex]\(\frac{9}{16}\)[/tex].
To find the fraction of the track team that are grade 8 girls, we need to multiply the fraction of the team that are girls by the fraction of those girls who are in grade 8.
Let's denote the total number of students on the track team as [tex]\(T\)[/tex]. According to the information given:
- About[tex]\(\frac{3}{4}\)[/tex] of the students on the track team are girls. So the number of girls on the track team is [tex]\(\frac{3}{4}T\)[/tex].
- About [tex]\(\frac{3}{4}\)[/tex] of these girls are in grade 8. Therefore, the number of grade 8 girls is [tex]\(\frac{3}{4} \times \frac{3}{4}T = \frac{9}{16}T\)[/tex].
Thus, the fraction of the track team that are grade 8 girls is [tex]\(\frac{9}{16}\)[/tex]. This is found by dividing the number of grade 8 girls by the total number of students on the track team:
[tex]\[ \frac{\text{Number of grade 8 girls}}{\text{Total number of students on the track team}} = \frac{\frac{9}{16}T}{T} = \frac{9}{16} \][/tex]
Therefore, the fraction of the track team that consists of grade 8 girls is[tex]\(\frac{9}{16}\)[/tex].
Use the distributive property to expand the expression. (2x + 4y) − (2z + 4) A) 2x + 4y + 2z + 4 B) 2x + 4y − 2z + 4 C) 2x + 4y + 2z − 4 D) 2x + 4y − 2z − 4
3,868,000,000 in scientific notation
The number 3,868,000,000 in scientific notation is 3.868 x [tex]10^9[/tex].
We have,
Scientific notation is a way to express large or small numbers in a concise format. It consists of two parts:
a coefficient and a power of 10.
In the given number 3,868,000,000, we can express it in scientific notation by moving the decimal point to the left until there is only one non-zero digit to the left of the decimal point.
Count the number of places you moved the decimal point, and that becomes the exponent of 10.
Starting with 3,868,000,000, we can move the decimal point 9 places to the left to get 3.868.
The original number has been divided by [tex]10^9[/tex], so the exponent is 9.
Putting it all together,
We express 3,868,000,000 in scientific notation as
= 3.868 x [tex]10^9[/tex]
Where the coefficient is 3.868 and the exponent is 9.
Thus,
The number 3,868,000,000 in scientific notation is 3.868 x [tex]10^9[/tex].
Learn more about scientific notation here:
https://brainly.com/question/18073768P
#SPJ6
When light energy meets the surface of your sunglasses, what is the evidence that some of it has been: transmitted, reflected and absorbed?
When light energy meets the surface of sunglasses, some of it is transmitted, some are reflected, and some are absorbed.
What is light energy?Light energy is a form of electromagnetic radiation that is visible to the human eye.
It is a type of kinetic energy that travels in the form of waves at a speed of 299,792,458 meters per second in a vacuum.
We have,
The evidence that light has been transmitted through your sunglasses is that you can see through them.
The amount of light that is transmitted depends on the type of sunglasses and the properties of the lens material.
Sunglasses with darker lenses will transmit less light than those with lighter lenses.
The evidence that light has been reflected is that you can sometimes see reflections on the surface of your sunglasses.
This can be from the front surface of the lens or the back surface, depending on the design of the sunglasses.
Reflected light can also cause glare, which is why many sunglasses have anti-reflective coatings.
The evidence that light has been absorbed is that the lens of your sunglasses appears to be a different color.
The color of the lens is determined by the type of material used and the specific dyes or pigments added to the lens during manufacturing.
Different colors of lenses are designed to absorb different wavelengths of light, which can be useful for different activities such as driving or skiing.
Overall, the combination of transmission, reflection, and absorption of light in sunglasses helps to reduce the amount of light that reaches your eyes and can improve your visual comfort and clarity in bright environments.
Thus,
When light energy meets the surface of sunglasses, some of it is transmitted, some are reflected, and some are absorbed.
Learn more about light energy here:
https://brainly.com/question/30035453
#SPJ2
Can u help me plz plz plz plz
Luis bought stock at $75.40. The next day, the price increased $19.25. The new price changed by -5 3/4% the following day. What was the final stock price, rounded to the nearest cent? Is your answer reasonable?
At a store, 4 pairs of pants cost $90.00 and 4 pairs of jeans cost $78.00. How much would it cost to buy 3 pairs of pants and 5 pairs of jeans?
Final answer:
To calculate the total cost, find the individual costs of the pants and jeans, multiply them by the required quantity, and sum the resulting amounts. It costs $165.00 to buy 3 pairs of pants and 5 pairs of jeans.
Explanation:
To calculate the cost of buying 3 pairs of pants and 5 pairs of jeans, we first need to find the cost of one pair of pants and one pair of jeans. Given that 4 pairs of pants cost $90.00, the price per pair of pants is $90.00 ÷ 4 which equals $22.50. Similarly, 4 pairs of jeans cost $78.00, so the price per pair of jeans is $78.00 ÷ 4 which equals $19.50.
We then multiply the cost per pair of pants by the number of pants we want to buy, which is 3, and do the same for the jeans by multiplying the cost per pair by 5. Therefore, the total cost for the pants is 3 × $22.50 = $67.50, and the total cost for the jeans is 5 × $19.50 = $97.50.
Finally, we add these two amounts together to get the total cost: $67.50 + $97.50 = $165.00. So, it would cost $165.00 to buy 3 pairs of pants and 5 pairs of jeans.