5x+(-20)=-15x and there you have it
Answer:
B and C
Step-by-step explanation:
i just did this give me brainliest
Answer:
1) x²+4x=2700
2) 50x50
Step-by-step explanation:
Pony area = x²
line-up area=4x
x²+4x=2700
x²+4x-2700=0
(x-50)(x+54)
So x= 50 or -54. Since it can’t be a negative number, it must be 50.
CHECK:
Square = 50x50 = 2500
Line up area = 50x4 = 200
2500+200=2700 YES
A. 6.4/2
$3.20 per pound
3.2/16
$0.20 per ounce
b. 0.90/6
$0.15 per ounce
So b would e the best buy
Answer: (80+90+z)/3=90
Step-by-step explanation:
