3 years ago

What is the value of a in the equation 3a + b = 54, when b = 9?

1 answer:

4 0

In order to do this you have to substitute b with 9 and get 3a+9=54, now subtract 9 from both sides to leave a by itself and get 3a=45, now divide 3 in both sides to leave a by itself and get a=15

Hope this helps

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What percent of 225 is 180

Marysya12 [62]

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3 years ago

Read 2 more answers

Diane works at a gardening store, and today she is helping assemble gas trimmers to be sold. An employee from an earlier shift a

Oxana [17]

The linear function for the number of trimmers assembled is:

y = 7 + 4x.

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A linear function has the following format:

$y = ax + b$

In which:

a is the rate of change.
b is the fixed amount.

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In an earlier shift, 7 trimmers had already been produced, thus 7 is the fixed amount, that is, $b = 7$ .
Diane assembles 4 trimmers per hour, thus the rate of change is 4, that is, $a = 4$
The amount of trimmers y produced after x hours is given by: