Answer:
So if Jill, Sabrina and Kelly write the report together, it will take 4 hours.
Step-by-step explanation:
We know that Jill and Sabrina can write a lab report together in 6 hours. We know that all people work at the same rate.
So, we conclude that it will take Jill or Sabrina 12 hours if they write the report themselves. Kelly will also need 12 hours to write a report because we know everyone is working at the same speed.
We conclude that if all three work together they will need three times less time. We get:
So if Jill, Sabrina and Kelly write the report together, it will take 4 hours.
Answer:
<h2>
$ 30.8</h2><h2>
</h2>
Step-by-step explanation:
ratio and proportion:
<u>3 tickets</u> = <u> 7 tickets </u>
$13.20 x
then cross multiply: 3 (x) = 13.20 (7)
simplify: 3x = 92.4
solve for x = 92.4 / 3
x = $ 30.8
therefore,
7 tickets costs $ 30.8
Then you'll need to get started on it pretty soon.
Just take it slow and easy, and remember your order of operations (or PEMDAS).
First look through it and do any multiplications and divisions that you find.
Then do the additions and subtractions.
I just gave it a quick scan and I came up with 26. I dont know if it's correct.
Get to work. You can do this !
Answer:
A. <u>4</u> trucks will make $80 because 4 × 20 = 80, so they need to wash <u>38</u> cars to make the other $380 because 38 × 10 = 380.
($80 + $380 = $460)
B. <u>15</u> trucks will make $300 because
15 × 20 = 300, so they need to wash <u>16</u> cars to make the other $160 because 16 × 10 = 160. ($300 + $160 = $460)
C. <u>21</u> trucks will make $420 because
21 × 20 = 420, so they need to wash <u>4</u> cars to make the other $40 because 4 × 10 = 40.
($420 + $40 = $460)
D. <u>27</u> trucks will make $540, so they won't have to wash any cars because they would have already exceeded their goal of $460.
Not sure what to do for letter E. Sorry. I hope the rest makes sense though :)
Answer:
A. 7.50 per box
Step-by-step explanation:
We know that when there are 4 boxes, we make 30 dollars. Divide 4 from 30 to get 30/4 which is equal to 7.5. This means we make 7.5 dollars per box.
If this helps please mark as brainliest
