Question

PLEASE HELP MUST SHOW HAND WRITEN WORK

1. Kim's age is twice that of her sister.
(a) How can you represent Kim’s age with a mathematical sentence? (2pts)


When you add Kim's age to her sister's age, you get 36. How old is each sister?

(b) Write a mathematical equation that represents the situation above. Make sure to use part “a” to help you fill in Kim’s age. (4pts)



(c) Solve the equation in the space below for Kim’s sister’s age. (4pts)






(d) What is Kim’s sister’s age? (2pts)




(e) Use that information to solve for Kim’s age. What is Kim’s age? (3pts)

Answer 1

a.) Let x be Kim's sister's age. Kim's age would therefore be 2x.

b.) 2x + x = 36

c.) 2x + x = 36

3x = 36

x = 12

d.) So Kim's sister (x) is 12.

e.) Since Kim's age is 2x, Kim is 24.

Explanation:

See above.