Apack of gum costs 50 cents. that is 4 cents less than four times what the pack cost 15 years ago. write an equation that could be used to find the cost of the gum 15 years ago. then solve and find the price of gum 15 years ago

Alright, lets get started.

Suppose the cost of the gum 15 years ago is = x

Today's cost is 4 cents less than four times what the pack cost 15 years ago.

Means

todays cost =

......................equation

Adding 4 in both sides

Dividing 4 in both sides

x = 13.5

Hence price of gum 15 years ago was 13.5 cents. : Answer

Hope it will help :)

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation: