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LUCKY_DIMON [66]

3 years ago

15

Dina and Masha started out on a 12 mi bike path at the same time. When Dina reached the end of the 12 mi, Masha still had 3 mi l

eft to bike. If Dina’s biking speed is 8 mph, find Masha’s biking speed.

2 answers:

andrew11 [14]3 years ago

7 0

Answer:

6mph

Step-by-step explanation:

Anna35 [415]3 years ago

6 0

Answer:

6 mph

Step-by-step explanation:

Use formula

$D=r\cdot t,$

where

D = distance

r = rate

t = time

In your case,

D = 12 mi

<u>Dina:</u>

D = 12 mi

r = 8 mph

t = ?

So,

$12=8t\\ \\t=\dfrac{12}{8}=\dfrac{3}{2}=1.5\ hours$

<u>Masha:</u>

D = 12 - 3 = 8 mi

r = ?

t = 1.5 hours

Then

$9=1.5r\\ \\r=\dfrac{9}{1.5}=\dfrac{90}{15}=6\ mph$

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Answer:

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Step-by-step explanation:

Have in mind the definition of the term $a_n=4\,n-1$ , and now work on what the term $a_{n+1}$ is based on the previous definition:

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3 years ago

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lubasha [3.4K]

Answer:

The answer is option C.

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Step-by-step explanation:

The arithmetic sequence is given by

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Hope this helps you

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