Answer: 53.95
Step-by-step explanation:
A - 3b = 4 . . . . (1)
a = b - 2 . . . . . (2)
Putting (2) into (1), we have
b - 2 - 3b = 4
-2b = 4 + 2 = 6
b = 6/-2 = -3
From (1), a = b - 2 = -3 - 2 = -5
Hence, solution = (-5, -3)
Answer:
2xy/2 = money for 1 charity
Step-by-step explanation:
2 lemonades for each day (x) = 2x
amount of money made = 2xy = no of lemonades sold x profit of 1 lemonade
two charities = 2xy/2 = total profit divided by no of charities
To solve for the total price:
1.075(50) = 53.75
She will have to pay $53.75 in total.
The rules of exponents tell you to add exponents in the numerator and subtract those in the denominator. A power of a power causes the exponent to be multiplied.
