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Minchanka [31]
3 years ago
14

Elizabeth earned a grade of 85% on her multiple-choice science final that had a total of 160 problems. How many problems on the

final exam did Elizabeth answer correctly?
Mathematics
1 answer:
Naily [24]3 years ago
7 0

Answer:

135

Step-by-step explanation: Multiply 160 by 0.85(for 85%) and you get 135

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Solve the proportion/percent problem:
Shtirlitz [24]

The change that Angie will receive from an $100 bill is $38.944.

<h3>How to calculate the value?</h3>

Angie went to the store and bought 3 pairs of tennis shoes that each cost $24. The total cost will be:

= 3 × $24 = $72

Sales tax was then calculated at 6%. This will be:

= 6% × $72

= $4.32

Total cost = Cost + Tax

= $72 + $4.32

= $76.32

Coupon off = 20% × $76.32 = $15.264

Total amount paid = Cost - Coupon

= $76.32 - $15.264

= $61.056

The change gotten will be:

= $100 - $61.056

= $38.944

Learn more about money on:

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3 0
1 year ago
Identify the constant term in this expression.
Strike441 [17]

Answer:

The constant would be A) 9

Step-by-step explanation:

The Constant in a math expression is One number that is on its own or without a varialbe

5 0
3 years ago
Plss help i’ll give brainliest thank you!
Troyanec [42]

Answer:

The answer would be D or 8 bc 8x1=8 8x2=16 and that would be the GCF.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A swimmer does 3,560 J of work in 55 s. What is the swimmer's power output? Round your answer to two significant
Vesna [10]

Answer:

64.73 Watts

Step-by-step explanation:

We are given;

  • Work done by the swimmer = 3,560 J
  • Time, t = 55 seconds

We are required to calculate the power of the swimmer;

  • We need to know that power is the rate of doing work
  • That is, Power = Work done ÷ time

Therefore;

Power of the swimmer = 3,560 Joules ÷ 55 seconds

                                      = 64.727 Watts

                                      = 64.73 Watts

Thus, the power output of the swimmer is 64.73 watts

8 0
3 years ago
Read 2 more answers
Solve 5x^2+8x+3=0 for x
Black_prince [1.1K]

5x^2+8x+3=0

factor

(5x+3) (x+1)=0

using the zero product property

5x+3 =0  x+1 =0

5x=-3   x=-1

x=-3/5   x=-1


8 0
3 years ago
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