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2 years ago

13

Carmine paid electrician x dollars per hour for a 5-hour job plus $70 for parts,. The total charge was $320. Which equation can

be used to determine how much the electrician charged per hour

1 answer:

Lyrx [107]2 years ago

5 0

320-70 divided by 5 and you will get the value of x

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If (3, y) lies on the graph of y = -(2^x) then y=<br> 1/8<br> -6<br> -8

vazorg [7]

<h3>Answer is -8</h3>

Work Shown:

y = -(2^x)

y = -(2^3) ... replace x with 3

y = -(2*2*2) ... expand out 2 cubed

y = -8

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Step-by-step explanation:

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Find the value of 9x + 2 given that -5x-3=2

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2 years ago

A number plus itself, plus twice itself, plus 4 times itself is equal to -104

NARA [144]

The scenario will will be represented by: $x+x+2x+4x=-104$

The number will be -13

Step-by-step explanation:

We have to convert the given situation into the mathematical form

Let x be the number

Then

"a number plus itself"

x+x

"plus twice itself"

x+x+2x

"plus 4 times itself"

x+x+2x+4x

"is equal to -104"

$x+x+2x+4x=-104$

This can also be written as:

$x+x+2x+4x=-104\\8x=-104\\Dividing\ both\ sides\ by\ 8\\\frac{8x}{8}=\frac{-104}{8}\\x=-13$

Keywords: Linear Equation

Learn more about linear equation at:

#LearnwithBrainly

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