Answer:
26% tip
Step-by-step explanation:
213.90 / 1.15 = 186
213.90 + 20 = 233.9
233.9 / 186 = 1.26
26% tip
144 classes. each class is 10 minutes. 6X24= 144
Answer:
The probability of choosing a yellow marble is 2/13
Step-by-step explanation:
There are 2 yellow and 11 blue marbles in the bag or a total of 13 marble
P(yellow) = number of yellow marbles / total marble
= 2/13
The probability of choosing a yellow marble is 2/13
Let's assume two variables x and y which represent the local and international calls respectively.
x + y = 852 = total number of minutes which were consumed by the company (equation 1)
0.06*x+ 0.15 y =69.84 = total price which was charged for the phone calls (Equation 2)
from equation 1:-
x=852 -y (sub in equation 2)
0.06 (852 - y) + 0.15 y =69.84
51.12 -0.06 y +0.15 y =69.84 (subtracting both sides by 51.12)
0.09 y =18.74
y= 208 minutes = international minutes (sub in 1)
208+x=852 (By subtracting both sides by 208)
x = 852-208 = 644 minutes = local minutes
Answer:A:0
Step-by-step explanation:hope this helps :)
