I believe that the answer would be
A. Positive
Alex's money = x
Hayley's money = 3x (she has three times as much money as him)
20 = x + 3x
20 = 4x
/4 /4
5 = x
So Alex's money = 5. Hayley's money is 3 times his, so Hayley's money is 15.
Answer:
Width 15 feet
Step-by-step explanation:
Use formula

Let x feet be the width of the rectangle.
If the length of a rectangle is 4 times the width of the rectangle, then the length is 4x feet.
The area of the rectangle is 900 square feet, so
![900=x\cdot 4x\\ \\900=4x^2\\ \\x^2=225\ [\text{Divided by 4}]\\ \\x=\pm 15](https://tex.z-dn.net/?f=900%3Dx%5Ccdot%204x%5C%5C%20%5C%5C900%3D4x%5E2%5C%5C%20%5C%5Cx%5E2%3D225%5C%20%5B%5Ctext%7BDivided%20by%204%7D%5D%5C%5C%20%5C%5Cx%3D%5Cpm%2015)
The width cannot be negative, then x=15 feet and 4x=60 feet.
Answer:
radius would be 14. you get the circumference (87.92) and divide it by pi (3.14) you get 28 which is the diameter and divide it by 2 and you get the radius 14.
Step-by-step explanation: