Answer:
x = 8
Step-by-step explanation:
add all side lengths to find the perimeter
5x + 6x + 5 + 6x +3 = 144 add like terms
17x + 8 = 144 subtract 8 from both sides
17x = 136 divide both sides by 17
x = 8 to find the side lenghts replace x with 8 in each expression
This app sucks and your dumb
25.60(.35)= 8.96
The amount of the discount is $8.96
Answer:
Maggie is 11 years old
Step-by-step explanation:
let m be Maggie and b be her brother.
substitute for b.
add 6 to both sides
divide by 5 on both sides
double check by finding the brother's age by substituting for m
Firstly add 7 to both sides= x/3= 5
Times by 3 on both sides to get x on its own= x= 15
