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irina1246 [14]
3 years ago
14

Working alone, it takes Julia 16 hours to clean an attic. Lea can clean the same attic in 15 hours. If they worked together how

long would it take them?
Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0
How do you think we set this problem up?

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Find the sum 9/16+10/13
Dima020 [189]

Answer:

277/208

Step-by-step explanation:

9/16+10/13

=277/208

8 0
3 years ago
Amanda has already run 14 miles on her own, and she expects to run 5 miles during each track practice. How many tracks would it
mina [271]

Answer:

It will take Amanda 3 track practices to run 29 miles.

Step-by-step explanation:

29-14=15

15/3=5

or

14+5x=29

subtract 14 from both sides

5x=15

divide both sides by 3

x=3

Hope this helps. Brainliest will be appreciated.

5 0
3 years ago
Is -7 less of equal to -6. Is the inequality true or false
lapo4ka [179]

Answer:

false

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
? A mug can hold 13.46 oz of coffee without overflowing. The radius of the mug is 3 cm. Given that 1 cm3 equals 0.034 oz, what i
Elan Coil [88]

Answer:

14 cm

Step-by-step explanation:

Given:

A mug can hold 13.46 oz of coffee.

The radius of the mug is 3 cm.

Given that 1 cm^{3} equals 0.034 oz.

Question asked:

What is the height of the mug to the nearest centimeter ?

Solution:

Given that 1 cm^{3} equals 0.034 oz.

By unitary method:

0.034 oz = 1 cm^{3}

1 oz = \frac{1}{0.034}

13.46 oz = \frac{1}{0.034}\times13.46 =395.88 \ cm^{3}

A mug can hold 13.46 oz of coffee means volume of cylinder is given which is 395.88 cm^{3}. Now we can find the height of the mug by using volume of cylinder formula:

volume of cylinder = \pi r^{2} h

                   395.88=\frac{22}{7} \times3\times3\times \ h\\395.88=\frac{198 \ h}{7}

By cross multiplication:

                 395.88\times 7 =198\ h\\2771.16= 198\ h

By dividing both side by 198

h = 13.99 cm

Therefore,  height of the mug to the nearest centimeter is 14 cm.

                   

6 0
4 years ago
Read 2 more answers
Complete the like terms to create an equvalent expression:<br> -4r - 2r + 5
Marat540 [252]
-6r+5
the two like terms are the ones with R. combine -4r and -2r to get -6r
3 0
2 years ago
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