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4 years ago

Can someone please help me please

Mathematics

2 answers:

Artyom0805 [142]4 years ago

7 0

Answer:90%

Step-by-step explanation:

45/50=.9

____ [38]4 years ago

3 0

Answer:

i am sure it is 5 or 90%

Step-by-step explanation:

pls mark brainliest

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Answer:

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Step-by-step explanation:

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Linda can bicycle 48 miles in the same time as it takes her to walk 12 miles. She can ride 9 mph faster than she can walk. How f

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Answer:

$\frac{48}{r+9}=\frac{12}{r}$

Step-by-step explanation:

Let r represent Linda's walking rate.

We have been given that Linda can ride 9 mph faster than she can walk, so Linda's bike riding rate would be $t+9$ miles per hour.

$\text{Time}=\frac{\text{Distance}}{\text{Rate}}$

We have been given that Linda can bicycle 48 miles in the same time as it takes her to walk 12 miles.

$\text{Time while riding}=\frac{48}{r+9}$

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Since both times are equal, so we will get:

$\frac{48}{r+9}=\frac{12}{r}$

Therefore, the equation $\frac{48}{r+9}=\frac{12}{r}$ can be used to solve the rates for given problem.

Cross multiply:

$48r=12r+108$

$48r-12r=12r-12r+108$

$36r=108$

$\frac{36r}{36}=\frac{108}{36}$

$r=3$

Therefore, Linda's walking at a rate of 3 miles per hour.

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Therefore, Linda's riding the bike at a rate of 12 miles per hour.

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HOPING THIS HELPED YOU! MARK ME 5\

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