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zhenek [66]
3 years ago
11

On a spelling test, Marcy got 15% of the questions incorrect. If there were 40 questions on the spelling test, than how many que

stions did Marcy get correct?
Mathematics
1 answer:
marissa [1.9K]3 years ago
4 0

Answer:

34

Step-by-step explanation:

Marcy got 15% of the 40 wrong

.15 *40

6

If she got 6 wrong, then she got the rest right

40-6 = 34

She got 34 right

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1.5 divided by 2.5 round to the nearest tenth
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The answer 0.6 i apologize if it is incorrect!
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Please help :(<br> [math]
sergij07 [2.7K]

Hey!

------------------------------------------------

First Equation:

2x + 3 = -7

2x + 3 - 3 = -7 - 3 (Subtract 7 to both sides)

2x = -10

2x/2 = -10/2 (Divide 2 to both sides)

x = -5

------------------------------------------------

Second Equation:

4.5x - 7 = 20

4.5x + (-7) + 7 = 20 + 7 (Add 7 to both sides)

4.5x = 27

4.5x/4.5 = 27/4.5 (Divide 4.5 to both sides)

x = 6

------------------------------------------------

Third Equation:

-3x + 7 = 28

-3x + 7 - 7 = 28 - 7 (Subtract 7 to both sides)

-3x/-3 = 21/-3 (Divide -3 to both sides)

x = -7

------------------------------------------------

Answers:

2x + 3 = -7 → x = -5

4.5x - 7 = 20 → x = 6

-3x + 7 = 28 → x = -7

------------------------------------------------

Hope This Helped! Good Luck!

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3 years ago
Billy Found The Slope of the line through the points (2,5) and (-2, -5) using the equation shown in the picture below. What mist
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Answer: the numbers were negative so he needed to add the positive numbers to that equation (I think sorry if I’m wrong)

Step-by-step explanation:

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