Jeremy had 291 more buttons than Cody at first. Then Jeremy bought 45 more buttons. In the end, Jeremy has 4 times as many buttons as Cody.
- How many buttons did Cody have?
- Find the total number of buttons Jeremy and Cody had in the end?
| |
Jeremy |
Cody |
Total |
| Before |
1 u + 291 |
1 u |
|
| Change |
+ 45 |
|
|
| After |
1 u + 291 + 45 |
1 u |
5 u |
(a)
Before
Number of buttons that Jeremy had = 1 u + 291
Number of buttons that Cody had = 1 u
After
Number of buttons that Jeremy had = 1 u + 291 + 45 = 4 u
Number of buttons that Cody had = 1 u
1 u + 291 + 45 = 4u
1 u + 336 = 4 u
4 u - 1 u = 336
3 u = 336
1 u = 336 ÷ 3 = 112
(a)
Number of buttons that Cody had
= 1 u
= 112
(b)
Number of buttons that Jeremy and Cody had in the end
= 4 u + 1 u
= 5 u
= 5 x 112
= 560
Answer(s): (a) 112; (b) 560
