Question

PLS HELP (correct gets brainliest, and do all five, if you don't know don't answer!)
pls, show your work!


6. the length of a rectangle is 6cm longer than the width, if the length is increased by 9cm and the width by 5cm, the perimeter will be 160cm, find the dimensions of the ORIGINAL rectangle,

7. the perimeter of a triangle is 69cm, side a is 5cm shorter than side b, side c is twice as long as side a, find the length of each side.

8.the first side of a triangle is 7cm shorter than twice the second side b, side c is twice as long as side a, find the length of each side.

9. three less than 5 times Wanda's age is the same as 3 times her age increased by 37, how old is she.

10. mary's age is 5 times Jose's age, the sum of their ages is 18, how old is each

Answer 1

Answer:

1. 10: let Jose"s age be x yrs
2. Mary age be 5x al
3. ATQ
4. x+5x=18
5. 6x=18
6. x=3
7. Jose age=3yrs,Mary=18 yrs

Answer 2

Answer:

Step-by-step explanation:

6. Let the width be=x

   length = x+6

   when length is increased

   width  = x+5  

   length = 15+x

   perimeter= 2(l+b) = 2(5+x+15+x) = 2(20+2x) =160

    20+2x=80   2x=60   x=30

    width= 30   length= 36

9.Age of Wanda= x

   5x-3 = 3x+37  

   2x=40   x=20