Nicole bought
34 as many highlighters as correction tapes at first. After she bought another 30 highlighters and 55 correction tapes, there were
35 as many highlighters as correction tapes. How many highlighters and correction tapes did Nicole buy at first?
| |
Make p the same
(1)x5 = (3) |
Highlighters
(1) |
Correction Tapes
(2) |
Make p the same
(2)x3 = (4) |
| Before |
15 u |
3 u |
4 u |
12 u |
| Change |
+ 150 |
+ 30 |
+ 55 |
+ 165 |
| After |
15 p |
3 p |
5 p |
15 p |
Make p the same.
(3) = (4)
15 u + 150 = 12 u + 165
15 u - 12 u = 165 - 150
3 u = 15
1 u = 15 ÷ 3 = 5
Number of highlighters and correction tapes that Nicole bought at first
= 3 u + 4 u
= 7 u
= 7 x 5
= 35
Answer(s): 35
