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Oliga [24]
3 years ago
7

This morning, Jake took a history test. There were 90 multiple-choice problems on the test and

Mathematics
1 answer:
ahrayia [7]3 years ago
5 0

Answer:

36

Step-by-step explanation:

To find percent, turn the percent into a fraction (turn 40% into .40) then multiply it by the total number (90).

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Solving a system of equation <br> x+5y=15 <br> -3x+2y=6
Colt1911 [192]

Answer:

(0,3)

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Step-by-step explanation:

x+5y=15

-3x+2y=6

solve the equation

x=15-5y

-3x+2y=6

substitute the value of x into an equation

-3(15-5y)+2y=6

distribute

-45-15y+2y=6

add 15 to 2

-45-17y=6

add 45 from both sides

17y=51

divide both sides by 17

y=3

substitute the value of y into an equation

x=15-5•3

multiply 5 to 3

x=15-15

subtract

x=0

(0,3)

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3 years ago
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Answer:

(-8,-2) (-4,6)

Step-by-step explanation:i just got the answer

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