When change in one variable is accompanied by the change of another variable in the same direction, they are directly proportional to each other, and it is usually represented by the general equation, y = kx where k is a constant.
Multiply the percentage off by the original price: .35•120=42. Subtract that answer from the original price: 120-42=78. The new price is $78 :)
Answer:
I need more information to awnser this quetion but would have been happy to help:)
3/15 = x/4
cross multiply
15x = (4)(3)
15x = 12
x = 12/15
x = 4/5 <==
Answer:
Savannah collected 180 stamps and her brother collected 36 stamps
Step-by-step explanation:
Let
x = number of stamps Savannah brother collected
Savannah collected 5 times as many stamps as her brother, then
5x = number of stamps Savannah collected.
Total number of stamps = 216, then