Janet has $40. She gives $25 to Emma. What percent of Janet's money does Emma have?
A
0.625%
B
1.60%
C
55%
D.
62.5%

The percentage of Janet's money does Emma have is D. 62.5%.

Given that,

Based on the above information, the calculation is as follows:

= 62.5%

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i think it's D. because 55% isn't enough, but very close, and 0.625% is wy too little, and the same for 1.60.

Step-by-step explanation:

estimation.

366

step-by-step explanation:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240