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Wittaler [7]
3 years ago
12

A worker can do a job in 5 hours, and his student can do the same job in 8 hours. What part of the work is left to finish after

two hours of their working together?
Mathematics
2 answers:
Vlad1618 [11]3 years ago
6 0

Answer: 13/20

Think: How much can each of them do In 1 Hour (1/5 and 1/8) Then add those two together. Then multiply the sum by two. Finally Simplify the answer of 26/40 into 13/20

iren2701 [21]3 years ago
3 0

Answer:

7/20

Step-by-step explanation:

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Quick Fix Inc. repairs bikes. The company’s revenue is modeled by the function R(h)=220h-160 for the every h hours spent repairi
Aneli [31]

Answer:

7

Step-by-step explanation:

3+4

4 0
2 years ago
Find the area of the figure.
Lunna [17]

Answer:

25 square units

Step-by-step explanation:

just count them and each triangle is 1/2 a unit

6 0
3 years ago
A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? Please show how
VashaNatasha [74]

Answer:

im pretty sure it is 47.99 dollars

Step-by-step explanation:

69x.35=24.15, 69-24.15=44.85, then 44.85x.07=3.1395, 3.1395+44.85=47.9895 but you have to round so it is $47.99

hope this helps :)

5 0
3 years ago
Read 2 more answers
1+4=5<br> 2+5=12<br> 3+6=21<br> 8+11=?
MariettaO [177]
Oh, I SEE what da pattern is! =D
You see, like in this problem:
2 + 5 = 12
They did 5 times 2 = 10, plus da 2 in da problem = 12.
Same with 3 + 6 = 21, 6 times 3 = 18, 18 plus da 3 given in da problem = 21.
Just like 1 + 4 = 5, 4 times 1 = 4, plus da 1 in da problem = 5.
SO,
with that strategy, 8 +11 = 96, because 8 times 11 = 88, plus da 8 given in da problem = 96.
I hope I helped! =D
6 0
3 years ago
the original price of a collectible model airplane is $115. The discounted price is $99. What is the percent of discount to the
storchak [24]

Answer:

$99/$115 x 100% = 86.086% of the original price  

So 100% - 86.086  

= 13.9 = 14%  

Or you could just do (115 - 99) x 100 which gets the same answer.

8 0
4 years ago
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