Answer:
charges for the first hour = $7.55
charges for each additional hour = $1.55
c = 1.55h + 7.55
Step-by-step explanation:
Let
x = charges for the first hour
y = charges for each additional hour
x + 2y = 10.65 (1)
x + 5y = 15.30 (2)
Subtract (1) from (2)
5y - 2y = 15.30 - 10.65
3y = 4.65
y = 4.65/3
= 1.55
y = $1.55
Substitute y = 1.55 into
x + 2y = 10.65
x + 2(1.55) = 10.65
x + 3.10 = 10.65
x = 10.65 - 3.10
= 7.55
x = $7.55
c = 1.55h + 7.55
This may be wrong but this is how id do it.
110.25 + 55.45 = 165.7
165.7 x 4.5 = 745.65 g of brown sugar
The most precise is 4.00 because that is equal to 10.16 cm and that is the most closes to an exact measurment.
The perpendicular line to x-6y=2, and passing through (2, 4) is y=-6x+16
Answer: TRUE!
Variables ARE letters used in place of numbers absolutely
