Answer:
35
Step-by-step explanation:
Using proportions, you are correct:
70/x = 100/50
cross multiply
100x = 3500
divide both sides by 100 to get your answer.
32+90+8y-6=180 solve that equation and that should be your answer
Answer:The number of minutes that Alexandra talked on her cell phone is 120
Step-by-step explanation:
A cell phone company charges a flat rate of 4.75 per month with an additional charge 0.19 per minute. Assuming the total number of minutes of call made for the month is represented by x and the total cost of x minutes of call is y, then
y = 0.19x + 4.75
To determine how many minutes that Alexandra talked on her cell phone if his monthly bill was 27.55, we would substitute y = 27.55 into the equation. It becomes
27.55 = 0.19x + 4.75
0.19x = 27.55 - 4.75 = 22.8
x = 22.8/0.19 = 120 minutes.
Answer:
-62c - 5c = -67c
Step-by-step explanation:
(Brand 1 ) -62c (Brand 2 is 5c lower, so it is negative or minus) -5c = (Do the math and it's -67c)
Answer:
36
Step-by-step explanation:
girls:boys=2:3
2units=24
1unit=24÷2=12
boys have 3 units
3units=12 x 3 =36
There are 36 boys