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Nimfa-mama [501]
3 years ago
11

Erin works as a computer support person after school. She earns $15 per day plus $0.50 for each computer she fixes.

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
7 0

Answer:

Step-by-step explanation:

y=0.5x+15

We are told she earned $16.50 so

0.5x+15=16.5, subtract 15 from each side

0.5x=1.5, divide each side by 0.5

x=3

So she fixed three computers.

Keith_Richards [23]3 years ago
4 0

Answer:

She Fixed 1 computer but fixed it for two days

Step-by-step explanation:

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kolbaska11 [484]

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floor 14

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​ △ABC∼△EFG ​.<br><br> Given m∠C=52° and m∠E=61° , what is m∠B ?
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Did you you get the answer to this one?

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An airplane flies 370 miles in 1/2 hour what is its average speed in miles per hour
Sliva [168]

Answer:

740

Step-by-step explanation:

370 miles in 0.5 hours

370/0.5 = 740 miles per hour

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3 years ago
Find the x and y intercepts of the following function.<br> g(x)=x^2-5x-84
Ahat [919]

Answer:

see explanation

Step-by-step explanation:

To find the y- intercept let x = 0 in the function

g(0) = 0 - 0 - 84 = - 84 ← y- intercept

To find the x- intercepts let y = 0, that is

x² - 5x - 84 = 0

To factor the quadratic

Consider the factors of the constant term (- 84) which sum to give the coefficient of the x- term

The factors are - 12 and + 7, since

- 12 × 7 = - 84 and - 12 + 7 = - 5, thus

(x - 12)(x + 7) = 0

Equate each factor to zero and solve for x

x - 12 = 0 ⇒ x = 12

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8 0
4 years ago
Match each function with the expression representing its inverse function.
Georgia [21]

Answer:

  • A matches with 5.
  • B matches with 3.
  • C matches with 2.
  • D matches with 6.
  • E matches with 4.
  • F matches with 1.

Step-by-step explanation:

To find the inverse of a function f(x), we let f(y)=x and then solve again for y.

For example, using g(x)=-0.5x, we will let g(y)=x, giving x=-0.5y. This means that y=-2x, and thus g^{-1}(x)=-2x.

Using similar logic, we see that:

  • A matches with 5.
  • B matches with 3.
  • C matches with 2.
  • D matches with 6.
  • E matches with 4.
  • F matches with 1.
5 0
2 years ago
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