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Goshia [24]
3 years ago
5

Maya runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes?

Mathematics
2 answers:
andreev551 [17]3 years ago
7 0

Answer:

5.6 miles.

Step-by-step explanation:

7/80=x/64 is our equation

Cross multiply to solve for x

x=7*64/80

x=5.6mi

Hope this helps ^-^

baherus [9]3 years ago
3 0

Answer:

5.6 miles

Step-by-step explanation:

Let's set up a proportion using the following setup.

\frac{miles }{minutes}=\frac{miles }{minutes}

We know Maya can run 7 miles in 80 minutes.

\frac{7miles }{80minutes}=\frac{miles }{minutes}

We don't know how many miles she can run in 64 minutes. Let's say she can run x miles in 64 minutes.

\frac{7miles }{80minutes}=\frac{x miles }{64 minutes}

\frac{7}{80}=\frac{x}{64}

We want to solve for x (miles in 64 minutes). Therefore, we must isolate x on one side of the equation.

x is being divided by 64. The inverse of division is multiplication. Multiply both sides of the equation by 64.

64*\frac{7}{80}=\frac{x}{64}*64

64*\frac{7}{80}=x

64*0.0875=x

5.6=x

x= 5.6 miles

Maya can run 5.6 miles in 64 minutes.

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If the sumof two numbers,n and m,is rational,which statement is true?
Nataly_w [17]

Option B:

Both n and m must be rational.

Solution:

Given information:

Sum of two numbers, n and m are rational.

<u>To find which statements are true:</u>

Option A: Both n and m may be rational but do not have to be.

It is not true because n and m given is rational.

It have to be rational.

Option B: Both n and m must be rational.

Yes, n and m must be rational then only the sum of numbers are rational.

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Option C: Both n and m must be irrational.

Sum of irrationals will be sometimes irrational and sometimes can't add.

So it is not true.

Option D: One number is rational and the other is irrational.

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Option B is true.

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3 years ago
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faust18 [17]
Multiply each number by 3.

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Hope this helps!
3 0
3 years ago
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Robert and Chris can skate 4 miles in 18 minutes. How far can they ride in 45 minutes?​
adell [148]

Answer: Robert and Chris can skate 10 miles in 45 minutes.

Step-by-step explanation:

Let's start by finding the unit rate.

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