Question

Question 10

Christine, Jim, and Ali sent a total of 89
text messages over their cell phones during the weekend. Jim sent
2 times as many messages as Ali. Ali sent
5 fewer messages than Christine. How many messages did they each send?

Answer 1

A = 21

J = 2A = 42

C= A+5 =26

Explanation:

just got it right

Answer 2

A = 21

J = 2A = 42

C= A+5 =26

Explanation:

C= christines text messages

J = jims messages

A = ali messages

Jim sent 2 times as many messages as Ali.

J = 2A

Ali sent 5 fewer messages than Christine.

A =C-5

A+5 =C

Christine, Jim, and Ali sent a total of 89 text messages

C+J+A = 89

substitute

C +5= A

A+5 +J+A = 89

combine like terms

2A +5+J = 89

now substitute J = 2A

2A +5+2A = 89

combine like terms

4A +5 = 89

subtract 5 to each side

4A +5-5 = 89-5

4A = 84

divide by 4

A = 21

J = 2A = 42

C= A+5 =26