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Tatiana [17]
2 years ago
14

Please help.

Mathematics
1 answer:
Dominik [7]2 years ago
7 0
I think the answer is C hope this helps
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If a+2b/a-b =2/3 then b/a=?​
Dominik [7]

Answer:

\frac{b}{a} = - \frac{1}{8}

Step-by-step explanation:

Given

\frac{a+2b}{a-b} = \frac{2}{3} ( cross- multiply )

2(a - b) = 3(a + 2b) ← distribute parenthesis on both sides )

2a - 2b = 3a + 6b ( subtract 3a from both sides )

- a - 2b = 6b ( add 2b to both sides )

- a = 8b ( divide both sides by 8 )

- \frac{1}{8} a = b ( divide both sides by a )

- \frac{1}{8} = \frac{b}{a}

6 0
2 years ago
Read 2 more answers
Which of the following is equivalent to (81m^6)^1/2?
ch4aika [34]
That would be option A 
because square root of 81 is 9 and square root m^6 is m^3.
3 0
3 years ago
Read 2 more answers
What is { 1 + 7 - 6 + 99 }
Igoryamba

1 + 7 - 6 + 99 = 101

Step-by-step explanation:

7 + 1 = 8

8 - 6 = 2

99 + 2 = 101

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4 0
2 years ago
Read 2 more answers
Joe drove 538 miles in 9 hours 15 minutes what was his average speed per hour
DanielleElmas [232]
To calculate any speed, the equation is speed=distance/time
Basically, you first need to take your 9 hours and 15 minutes and combine them into a number with a decimal value.
So, 15*4=60
Sound familiar? Good, because 25*4=100, so they are the same here.
So, we can say 9 hours and 15 minutes is equal to 9.25
Take this now: Speed=538/9.25
You get 58.1621, which you can round to 58.2
This is, of course, your final answer, so Joe drove at 58.16 mph
7 0
3 years ago
I don't want a account I just want answers
IgorLugansk [536]
Answers for what ?:o
8 0
3 years ago
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