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3 years ago

If the ratio of b to a is equal to 6 and the difference of b and a is 12, what is the value of a?

Mathematics

1 answer:

Reil [10]3 years ago

3 0

Answer:

a = 2.4

Step-by-step explanation:

The problem statement tells you ...

b/a = 6

b - a = 12

Using the first equation, we can write an expression for b:

b = 6a . . . . . . . multiply both sides by "a"

This can be substituted into the second equation to find a value for "a":

6a -a = 12

5a = 12

a = 12/5 = 2.4

The value of a is 2.4.

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Answer:

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Step-by-step explanation:

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2 years ago

What is the mean average deviation of 5, 6, 6, 7, 9, 10, 10, 11.

Bingel [31]

Answer:

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Step-by-step explanation:

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3 years ago

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Vadim26 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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Nimfa-mama [501]

Answer:

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Step-by-step explanation:

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3 years ago

A pet store has 11 puppies, including 4 poodles, 5 terriers, and 2 retrievers. If Rebecka and Aaron, in that order, each se

Nataliya [291]

The probability that Rebecka selects a terrier and Aaron selects a retriever is 10/121

<h3>How to determine the probability?</h3>

The distribution of the puppies is given as:

4 poodles, 5 terriers, and 2 retrievers

The probability of selecting a terrier is;

P(terrier) = 5/11

The probability of selecting a retriever is;

P(retriever) = 2/11

The required probability is

P = 5/11 * 2/11

Evaluate

P = 10/121

Hence, the probability that Rebecka selects a terrier and Aaron selects a retriever is 10/121