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
devlian [24]
4 years ago
7

Use the table above to determine how long it will take the Spirit Club to wax 60 cars​

Mathematics
1 answer:
vampirchik [111]4 years ago
3 0

Answer:

  22 1/2 hours

Step-by-step explanation:

There are several ways you can get there. One way is to use table values to form a sum of 60:

  cars = 32×2 - 8×(1/2) = 64 -4 = 60

Then the corresponding hours are ...

  hours = 12×2 - 3×(1/2) = 24 -1.5 = 22.5

It will take 22.5 hours to wax 60 cars.

__

Another way to get there is to use proportions:

  hours/cars = 3/8 = ??/60

Multiply by 60 to find ??

  (60)(3/8) = ?? = 180/8 = 22.5 . . . . hours

_____

We can do these things because we have determined the relationship between hours and cars is proportional: 8/3 = 16/6 = 32/12. If it weren't proportional, some other strategy would be needed to answer the question.

You might be interested in
If 1/4 of a number is 10,what is thenumber?​
ki77a [65]

Answer:

40

Step-by-step explanation:

10 x 4 = 40

so if it was 1/2 instead of 1/4 than it would be 20

5 0
3 years ago
Read 2 more answers
Solve for x<br> 3x + 6 over 3 = 6
Svetradugi [14.3K]

Answer:

X= 4

Step-by-step explanation:

3x+6/3=6

multiply each side by 3 to get rid of the fraction bar

3x+6=6*3

3x +6=18

-6 from both sides

3x= 18-6

3x=12

divide by three on both sides to solve for x

x=12/3

x=4

3 0
3 years ago
What is the first step in solving this system of equations by elimination? 5a + 3b = –9 2a – 5b = –16
Elis [28]
<span>Multiply one of the equations so that both equations share a common complementary coefficient.
       In order to solve using the elimination method, you need to have a matching coefficient that will cancel out a variable when you add the equations together. For the 2 equations given, you have a huge number of choices. I'll just mention a few of them.
   You can multiply the 1st equation by -2/5 to allow cancelling the a term.
   You can multiply the 1st equation by 5/3 to allow cancelling the b term.
   You can multiply the 2nd equation by -2.5 to allow cancelling the a term. You can multiply the 2nd equation by 3/5 to allow cancelling the b term.
   You can even multiply both equations.
For instance, multiply the 1st equation by 5 and the second by 3. And in fact, let's do that. 5a + 3b = –9 2a – 5b = –16 5*(5a + 3b = -9) = 25a + 15b = -45
   3*(2a - 5b = -16) = 6a - 15b = -48
       Then add the equations 25a + 15b = -45
   6a - 15b = -48
   =
   31a = -93
   a = -3
       And then plug in the discovered value of a into one of the original equations and solve for b.</span>
5 0
3 years ago
Ms. Pickford works at Game Stop in her spare time. She earns an 8% commission for all sales. She sold $1500 in the month of Nove
nordsb [41]

Answer:

$120

Step-by-step explanation:

Calculation for what was her commission

Since she sold the amount of $1,500 in the month of November in which we were told that she earns the commission of 8% for all sales which means that her commission will be calculated as :

Using this formula

Commission=November sales* Sales commission

Let plug in the formula

Commission=$1,500*8%

Commission= $120

Therefore what her commission will be is $120

4 0
3 years ago
How can you write 52+(8+25) to make it easier to add?
Liono4ka [1.6K]

You can't really make it easier to add, but since the (8+25) is in parentheses you should add that first

52 + 33

Then add straight away

52 + (8+25) = 85

8 0
4 years ago
Read 2 more answers
Other questions:
  • Ahhhhhhhhhhhh help I need help please
    9·1 answer
  • Order the side lengths from least to greatest​
    10·1 answer
  • Kellen​'s boat travels 15 mph. find the rate of the river current if she can travel 2 mi upstream in the same amount of time she
    6·2 answers
  • book world receives 12 boxes of books each box contains 16 copies of the new best-seller Norton's Last Laugh how many copies of
    9·1 answer
  • What is the value of x?<br> OOOO<br> 0 x = 32<br> O x = 36<br> 0 x = 37<br> x = 40<br> al 111111
    14·1 answer
  • Order from least to greatest. 2.34, 2 3 4 , 9 4 A) 2 3 4 , 9 4 , 2.34 B) 2 3 4 , 2.34, 9 4 C) 2.34, 9 4 , 2 3 4 D) 9/4, 2.34, 2
    10·2 answers
  • If using the method of completing the square to solve the quadratic equation x 2 − 9 x − 8 = 0 x 2 −9x−8=0, which number would h
    10·1 answer
  • Find the value of x.
    15·1 answer
  • 2/3 times what equals -36 PLS
    11·1 answer
  • Find x please :) pleaseeee
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!