On Friday, Kylie, Raeann, Jen and Dana spent a total of $217. On Saturday, Kylie spent twice of what she spent on Friday, Raeann spent the same as what she spent on Friday, Jen spent $20 less than what she spent on Friday, and Dana spent $3 more than what she spent on Friday. All of them spent an equal amount on Saturday. How much did Kylie and Dana spend altogether on Friday?
| |
Kylie |
Raeann |
Jen |
Dana |
Total |
| Before |
1 u |
3 u |
3 u + $20 |
3 u - $3 |
$217 |
| Change |
x 3 |
|
- $20 |
+ $3 |
|
| After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Friday
= 1 u + 3 u + 3 u + 20 + 3 u - 3
= 10 u + 20 - 3
= 10 u + 17
10 u + 17 = 217
10 u = 217 - 17
10 u = 200
1 u = 200 ÷ 10 = 20
Total amount that Kylie and Dana spent on Friday
= 1 u + 3 u - 3
= 4 u - 3
= 4 x 20 - 3
= 80 - 3
= $77
Answer(s): $77
