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Alecsey [184]
3 years ago
5

A student received a 76% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions answ

ered correctly to the
total number of questions? A. 20:15 B. 5:20 C. 15:20 D. 20:5
Mathematics
2 answers:
Studentka2010 [4]3 years ago
7 0
The answer is A
I did it and I got it right
cestrela7 [59]3 years ago
4 0

Answer:

A

Step-by-step explanation:

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Can someone help me Asap​
Lelechka [254]
B. Y=4x-14

Think about where the point is on the grid and then use the slope to get to the y-intercept. So for this question your going to have to move backwards to get to the y axis. Move down 12 units and left 3 and that’ll give you the y-intercept which will match in the equation.
3 0
3 years ago
Zucker Enterprises manufactures painted porcelain dolls. Zucker conducted a time study of the painting task. The painters took f
snow_tiger [21]

Answer:

45 mins

Step-by-step explanation:

The question is how much time should the painter spend on painting a doll for the costs to still be equal or lower to $24.50

We can make this equation, representing the raw materials + the painting job (at $18/h):

$11 + $18x = $24.50

18x = 13.50

x = 13.5 / 18 = 0.75

So, the painter should spend at most 3/4 of an hour (or 45 mins) painting a doll to keep the cost at or below $24.50 per doll.

3 0
3 years ago
Rewrite as difference of squares (2x+5)(2x-5)
andre [41]
4x^2-25

I got u homie wherever in the world u r
4 0
3 years ago
Write an expression to represent the sum of three times the square of a number and -7.
xz_007 [3.2K]

Answer:

3x^2-7

-7 is the constant

3 is the coefficient

x is the variable

Step-by-step explanation:

(3x^2)+(-7)

4 0
3 years ago
What is 39​% of 74​?
lora16 [44]
28.86 is the answer hopes this helped you



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6 0
3 years ago
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