Answer:
She would leave a $7.59 tip.
Step-by-step explanation:
18/100=0.18
42.15*0.18=7.587
Round up if more than 5, leave if less than 5. Since it is more than 5 you round up to 9, so the answer is $7.59.
Answer:
y = 4x
Step-by-step explanation:
If y is directly proportional to x (which is what I assume you are meaning in this question), this means that
y = kx, where k is the constant of proportionality.
To find k, we simply substitute in the given x and y values, and solve for k. i.e we to get:
8 = k x 2.
k = 8/2 = 4.
so y = 4x
Answer:
Step-by-step explanation:
Given
Squaring both sides
squaring both sides