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Vinil7 [7]
3 years ago
7

Steve is about to take his fifth math test. His scores on the first four test were 84, 92, 71, and 94. What score does Steve nee

d on his fifth test in order to have an average of exactly 85?
Mathematics
1 answer:
lyudmila [28]3 years ago
4 0

Answer:

  84

Step-by-step explanation:

The sum of the differences of the current scores from average is ...

  (84 -85) +(92 -85) +(71-85) +(94 -85) = -1 +7 -14 +9 = 1

So, to make the total of all differences from average be zero, Steve must get a score of 85 -1 = 84 on his 5th test.

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Two angles that have the same measure???
kumpel [21]

Answer:

Congruent Angles

Step-by-step explanation:

Two angles that have the same measure are called congruent angles.

5 0
3 years ago
Find AB if BC = 4, BD = 5, and AD = 3.
makkiz [27]
What shape? Rectangle?
3 0
2 years ago
What is the sum of the given polynomials in standard form? (x2 - 3x) + (-222 + 5x - 3) 0 -37 + 8x - 3 0-22–2x-3 o 3,2 - 8x + 3 o
Flauer [41]

Answer:

-x^2+2x-3

Step-by-step explanation:

(x^2 - 3x) + (-2x^2 + 5x - 3)

Combine like terms

-x^2+2x-3

8 0
3 years ago
Read 2 more answers
A company estimates that its cost and revenue can be modeled by the functions C)-0.75x+20,000
lisabon 2012 [21]

Let C(x) = -0.75x + 20,000 and R(x)= -1.50x then the profit function exists noted as P(x) = R(x) - C(x)

P(x) = -1.50x - (-0.75)x + 20,000

P(x)  = -0.75x + 20000

Therefore, the profit function exists -0.75x + 20000.

<h3>How to find profit function?</h3>

The profit function can be estimated by subtracting the cost function from the revenue function. Let profit be expressed as P(x), the revenue as R(x), the cost as C(x), and x as the number of items traded. Then the profit function exists noted as P(x) = R(x) - C(x).

Given:

C(x) = -0.75x+20,000 and R(x)= -1.50x

P(x) = R(x) - C(x)

= -1.50x - (-0.75)x + 20,000

= -1.50x + 0.75x + 20,000

Apply rule -(-a) = a

= -1.5x + 0.75x + 20000

Add similar elements:

-1.5 x + 0.75x = -0.75x

P(x)  = -0.75x + 20000

Therefore, the profit function exists -0.75x + 20000.

To learn more about profit function refer to:

brainly.com/question/16866047

#SPJ9

8 0
1 year ago
120 divided by what equals 1.2
Nikitich [7]
100 is the correct answer
6 0
3 years ago
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