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mestny [16]
3 years ago
7

(20 POINTS!!!!) Jack can paint an entire house in 3 hours. Jill can do the same job in 4 hours. What portion of the house can th

ey paint in 1 hour if they work together?
Mathematics
2 answers:
Charra [1.4K]3 years ago
6 0
7/12 portion of the house
Mariulka [41]3 years ago
5 0
Answer: 7/12 portion

Explanation:

Jack can paint:

1 house = 3hr
1/3 portion= 1hr

Jill can paint:

1 house = 4hr
1/4 portion = 1hr

Both of them together can paint in 1 hour:

1/3 + 1/4 = 3/12 + 4/12 = 7/12 portion in 1hr
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Wazma bought some new pants, but the 34 inch inseam was too long. If he wants the inseam to be 3013 inches long, how much length
KiRa [710]

The length of the inseam to be removed from the pant is 3 2 / 3 inches.

<h3 /><h3>How to find the length to be removed?</h3>

The length of the pant he bought is 34 inches and it was too long.

He wants the length to be 30 1 / 3 inches long.

Therefore, the amount of length to be removed can be calculated as follows;

34 - 30 1 / 3

30\frac{1}{3}  = \frac{91}{3}

Hence,

34-\frac{91}{3}=\frac{102-91}{3} =\frac{11}{3}=3\frac{2}{3}  inches

Therefore, the number to be removed is 3 2 / 3 inches

learn more on length here: brainly.com/question/11427600

#SPJ1

7 0
2 years ago
Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains
fenix001 [56]
So 5 liters of natural for every 7 synthetic, so 5 / 12 liters are natural oil.

so; 684 × (5/12) = 285 liters of natural oil

Hope this helps!
7 0
3 years ago
Find the value of x explain how you got your answer ​
aliya0001 [1]

Answer:

step 1: x+50+4x=90

the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.

step 2: x+50+4x=90

                  x+4x=50

                      5x=50

                        x=10

then you solve the equation, x is 10

4 0
3 years ago
Evaluate. −0.2916 ÷ (−2.7)
7nadin3 [17]
.108 would be the answer.
3 0
4 years ago
12÷12
Ghella [55]

Answer:

1

Step-by-step explanation:

Divide 12 in to 12 separate groups and you get 1 group of 12.

8 0
2 years ago
Read 2 more answers
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