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primary 6 | Maths
| Ratio
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Plz help ASAP! Without algebra plz, thank u so much!
Date Posted: 6 years ago
Views: 456
19 - 13 = 6
He used 6 more two dollar notes than ten dollar notes.
Remember he started with the same number of notes of each type.
Ten dollar notes left : 7 units
Two dollar notes left : 4 units
So 7 - 4 = 3 units
So the two dollar notes remaining is 3 units less than the ten dollar notes remaining.
This also means he used 3 units more of two dollar notes than ten dollar notes.
3 units = 6
1 unit = 6 ÷ 3 = 2
Number of two dollar notes in total
= 4 units + 19
= 4 x 2 + 19
= 8 + 19
= 27
Value of two dollar notes
= 27 x $2
= $54
He used 6 more two dollar notes than ten dollar notes.
Remember he started with the same number of notes of each type.
Ten dollar notes left : 7 units
Two dollar notes left : 4 units
So 7 - 4 = 3 units
So the two dollar notes remaining is 3 units less than the ten dollar notes remaining.
This also means he used 3 units more of two dollar notes than ten dollar notes.
3 units = 6
1 unit = 6 ÷ 3 = 2
Number of two dollar notes in total
= 4 units + 19
= 4 x 2 + 19
= 8 + 19
= 27
Value of two dollar notes
= 27 x $2
= $54
Thanks!
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