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kari74 [83]
3 years ago
11

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

Mathematics
1 answer:
nasty-shy [4]3 years ago
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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6 0
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Read 2 more answers
The period of a periodic function is 8 s . How many cycles does it go through in 30 s ?
kap26 [50]

The number of cycles of the periodic function is 3.75 cycles if the period of a periodic function is 8 s option (G) 3.75 is correct.

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It is given that:

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brainly.com/question/5245372

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7 0
1 year ago
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dmitriy555 [2]

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6 0
3 years ago
A rock is projected directly upward from ground level with an initial velocity of 90 ft/sec. After how many seconds will it retu
Nastasia [14]
For this case we have the following equation of motion:
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 Answer:
 
it will return to the ground in:
 
t = 5.625 s
4 0
4 years ago
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