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3 years ago

7

One month,ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as ruby. Together they worked 138 hours

find the number of hours each person worked

1 answer:

Fiesta28 [93]3 years ago

7 0

Ruby- 24
Isaac- 18
Svetlana - 96

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If f(x) = 7x+6 and g(x)=8x-4 find f(g(-2))

sp2606 [1]

Answer:

$f(g(-2))=-134$

Step-by-step explanation:

So we have the two functions:

$f(x)=7x+6\text{ and } g(x)=8x-4$

And we want to find f(g(-2)).

First, let's find g(-2):

$g(-2)=8(-2)-4$

Multiply:

$g(-2)=-16-4$

Subtract:

$g(-2)=-20$

Now, substitute:

$f(g(-2))=f(-20)$

Now, find the value of f(-20):

$f(-20)=7(-20)+6$

Multiply:

$f(-20)=-140+6$

Add:

$f(-20)=-134$

So:

$f(g(-2))=-134$

And we're done!

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3 years ago

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Answer:

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2 years ago

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ivann1987 [24]

Answer:

Step-by-step explanation:

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(1) × 12 :

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3 years ago

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3 years ago

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2 years ago