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Korvikt [17]
3 years ago
10

Cooper took a math quiz last week. There were 76 problems on the quiz and Cooper answered 75% of them correctly. How many proble

ms did Cooper get correct?
Mathematics
1 answer:
scoray [572]3 years ago
6 0

Answer:

57 problems

Step-by-step explanation:

Total number of problems = 76

Percentage of problems answered correctly = 75%

The number of problems Cooper got correctly =

75% of 76

= 75/100 × 76

= 57 problems

Cooper got 57 problem correctly

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F(x) = -4x + 15 <br> solve
adoni [48]

Answer:

x=15/4

Step-by-step explanation:

add 4x to the other side then divide both sides by 4

6 0
2 years ago
5 - 7 second power + 6 - 7 second power + 5 - 7 second power + 6 - 7 second power + 10 - 7 second power + 10 - 7 second power​
Zanzabum

ANSWER: -252

HOW TO GET IT:

Simply follow PEMDAS. Solve each exponent first, then do the rest.

8 0
3 years ago
Simplify the rational expression:<br> 5y+5/2 ÷ 25y-20/40y²-32y
NNADVOKAT [17]

Step-by-step explanation:

Your problem → 5y+5/2 / 25y-20/40y^2-32y

5y+5/2÷25y-20/40y^2-32y

=5⋅y+5/2÷25×y-20/40×y^2-32×y

=5y+5/2÷25×y-20/40×y^2-32y

=5y+5/2×1/25×y-20/40×y^2-32y

=5y+y/10-20/40×y^2-32y

=5y+y/10-y^2/2-32y

=5y×10+y-y^2×5-32y×10 ÷ 10

=50y+y-5y2-320y ÷ 10

= -269y-5y^2 / 10

4 0
2 years ago
I need to change the subject to x
tiny-mole [99]

(x - 4y) / w = 9

Multiply both sides by w

x - 4y = 9w

Add 4y to both sides

x = 9w + 4y

5 0
2 years ago
Does the average person live for at least 1,000,000 minutes?
irakobra [83]
Convert to hours, then days, then years
60 minutes per hour
1000000/60=50000/3=16666.7 hours

24 hours per day
16666.7/24=694.4 days
365 days per year
694.4/365=1.9

the average person lives at least 1.9 years
maybe, I guess
6 0
3 years ago
Read 2 more answers
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