1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vovikov84 [41]
3 years ago
9

The classes at the middle school want to raise money. The sixth grade runs a bake sale for 55 hours and makes $170. The seventh

grade sets up a dunking booth for 44 hours and makes $112. The eighth grade has a car wash and makes $192 in 66 hours. Which class has the highest rate for raising money?
Mathematics
2 answers:
Jet001 [13]3 years ago
6 0
The sixth grade runs a bake sale for 55 hours and makes $170.
So in one hour, they made 170/55 = 3.09 dollars.
Rate: $3.09/h

The seventh grade sets up a dunking booth for 44 hours and makes $112.
So in one hour, they made 112/44 = 2.54 dollars.
Rate: $2.54/h

The eight grade has a car wash and makes $192 in 66 hours.
So in one hour, they made 192/66 = 2.90 dollars.
Rate $2.90/h

3.09 > 2.90 > 2.54
So R(6th) > R(8th) > R(7th)

Which means that the sixth grade has the highest rate for raising money.

Hope this helps! :)
kogti [31]3 years ago
6 0
The rate of sixth grade is 170/55 = $3.09/hr.
The rate of seventh grade is 112/44 = $2.54/hr.
The rate pf eighth grade is 192/66 = $2.90/hr.
=> The sixth grade has the highest rate.
You might be interested in
Directions: You must answer the following questions. It is not enough to answer a question by merely listing facts. You must pre
Alexandra [31]

Binocular vision is used to perceive depth. When Brandon looks out into the forest, he uses binocular vision to determine how far away objects are in the forest. He uses the concept of the figure-ground relationship to identify trees and other figures in the forrest as separate from the background. The act of seeing or looking itself requires transduction. Light that hits his eyes undergoes a process called phototransduction in which light is converted to electrical signals which then move through different types of cells. Ultimately these signals are sent to a part of the brain called the occipital lobe where they are converted into an image in the brain.  

Brandon's dog begins to growl as a result of natural selection. Dogs who growled at potential predators were more likely to scare away the predator and survive. As a result, the dog growls when it sees a potential predator. When Brandon's dog starts growling, Brandon becomes fearful that there might be something in the forest. As a result of this fear, his body initiates a sympathetic response, releasing epinephrine into the body. This epinephrine acts on the heart and causes his pulse to increase. He also utilizes his peripheral nervous system to increase the strength of his grip on the leash

4 0
3 years ago
I REALLY NEED HELP ON THIS!!! HELP ASAP PLS!!! EXTRA POINTS TO THE FIRST PERSON WHO ANSWERS!!
elixir [45]
Doing an X and Y table i do not see that they will have the same amount. Adrian will always have 4 more comic books than Roy
6 0
4 years ago
Read 2 more answers
I need help with this math problem!
notka56 [123]
Write out   5t^2                    3t                            5t^2
                 -------- .  Invert --------- and multiply ---------- by the result:
                  8x^2                 (x^2)                         8x^2

                5t^2
multiply ---------- by the result:      5t^2       5*x^2     25 t^2 x^2
                8x^2                            ------- * ---------  = ----------------
                                                    8x^2         3t         8x^2 (3t)

Reducing this, we get       25t
                                        -------
                                         24x


3 0
3 years ago
Please help me in number 14 15 16 and 17
mash [69]
The same as the other one it will not pop up
7 0
3 years ago
PLEASE HELP ME:((( I NEED WORKING AS WELL
Aleks04 [339]

Answer:

a) y = 2x + 5, b) y = 2x-2

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask! ;)

6 0
3 years ago
Other questions:
  • If f(x) = 3x^2+ 3x^(1/2) + 3x, then f(-9) is equal to
    7·1 answer
  • How do I evaluate 8 with a root of 2/3
    12·1 answer
  • Which equation represent 3x 3/5 as a multiple of a unit fraction
    15·1 answer
  • The following graph shows the sunset time for seward alaska. use the graph to solve problems 1-6
    7·1 answer
  • How do you convert -1.35 into a fraction or mixed number in simplest form
    6·1 answer
  • A function with an input of 4 has an output of 10. Which of the following could not be the function equation?
    14·1 answer
  • NEED HELPPP FAST PLZZZZ???!!!??? On a coordinate plane, line A B goes through (negative 4, 0) and (2, negative 3). Point C is at
    8·2 answers
  • Sherri borrowed $3,200 at 13 percent APR for 18 months. If she must pay 19.5 per $100, what is the total interest? $624 $3,824 $
    11·2 answers
  • Ted added parentheses to this expression so that it's value is greater than 75. Where did Ted add the parentheses? 10+9x3-1x2
    12·1 answer
  • ou have two parents, four grandparents, eight great-grandparents, and so forth. (a) If all your ancestors were distinct, what wo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!