82 left after 3 rides b=100-6(3)
58 left after 7 rides b=100-6(7)
16 left after 14 rides b=100-6(14)
First we need to know both the formula of A and B.
The formula of A is
C = 5 + 0.25p
with C representing total cost and p representing the amount of checks.
The formula of B is
C = 6 + 0.15p
with C representing total cost and p representing the amount of checks.
To find the point where A and B cost the same, we solve the following equation:
5 + 0.25p = 6 + 0.15p
Collecting terms gives us
-1 = -0.1p
Now we have to divide by -0.1 and we get.
10 = p
p = 10
So our answer: after 10 checks both accounts cost the same amount of money. Answer A.
Answer:
He spent $30.54
Step-by-step explanation:
$4.45+$16.30=$20.75
$20.75 times 1.0865=$22.544875 rounded to 2 d.p. = $22.54
$22.54+$8=$30.54
Answer:
38π cm
Step-by-step explanation:
The area of a circle of radius r is A = 2πr.
If the radius is 19 cm, then the area is A = 2π(19 cm), or 38π cm.
Answer:
All are real numbers
i had this graph in my quick answers book hope so its correct
