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3 years ago

Please help somebody

Mathematics

2 answers:

UkoKoshka [18]3 years ago

5 0

Answer:

C. $\frac{c+5}{3}$

Step-by-step explanation:

Move b to the other side then b/b is 1

Move c to the other side it will become in the numerator

Move -5 to the other side it will be +5

So 3a = c+5

a = $\frac{c+5}{3}$

Dmitry [639]3 years ago

3 0

Answer:

Step-by-step explanation:

ok so, assuming that b cannot equal 0, we can divide it on both sides

(3a - 5)/c = b/b

anything divided by itself is 1

(3a - 5)/c = 1

multiply c:

3a - 5 = c

3a = c + 5

a = (c + 5)/3

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3 years ago

To travel 105 miles, it takes Sue, riding a moped, 3 hours less time than it takes Doreen to travel 64 miles riding a bicycle. S

Volgvan

Let t=time Doreen travels; let r=rate of Doreen

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Now solve the system:
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\\
\\(\frac{64}{t} +13)(t-3)=105 
\\
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\\ 13t^2-80t-192=0
\\
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Doreen: rate = 8 mph, time = 8 hours
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3 years ago

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Step-by-step explanation:

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Read 2 more answers