3 years ago

What is an equation that models the following situation?

Mathematics

1 answer:

Oksanka [162]3 years ago

5 0

Answer:

Step-by-step explanation:

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If Jeff washes his car in 6 minutes and bob washes the same car in 8 minutes. How long does it take both of them to wash the sam

Tatiana [17]

Answer:

3 3/7 or 24/7 mins

Step-by-step explanation:

Let total job = X

Jeff's rate = X/6

Bob's rate = X/8

Combined rate = X/6 + X/8

(4X × 3X)/24 = 7X/24

7X/24 = X/T

T = X ÷ (7X/24)

T = X × (24/7X)

T = 24/7 mins

Shortcut:

T = product of individual times/sum of individual times

T = (6×8)/(6+8)

T = 48/14

T = 24/7

T = 3 3/7 mins

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Rudiy27

49.5 / 71.5 = x / 97.5
x = 49.5 * 97.5 / 71.5
x = 67.5

answer
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andreyandreev [35.5K]

15+6=21
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answer
3×7-15=6

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4 years ago

What's bigger 3/4 or 9/12

pashok25 [27]

Change the common denominator so 3/4 ---> 9/12
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What is an equation of the line that passes through the points (8,-8) and (-5,-8)

Vanyuwa [196]

Step-by-step explanation:

steps are in picture above.

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3 years ago

What is an equation that models the following situation?​

What is an equation that models the following situation?