Asked by tashi
20 red marbles cost$3 while 40 marbels are available at$4.how much would it cost someone to buy 10 red marbles and 50 green marbles?
1.$3.50
2.$4.00
3.4.50
4.5.00
5.5.50
1.$3.50
2.$4.00
3.4.50
4.5.00
5.5.50
Answers
Answered by
Damon
red
each is 3/20
green
each is 4/40 which is 1/10
so
10(3/20) + 50(1/10)
= 1.50 + 5.00
= 6.50
ah well, not on the list. Typo?
each is 3/20
green
each is 4/40 which is 1/10
so
10(3/20) + 50(1/10)
= 1.50 + 5.00
= 6.50
ah well, not on the list. Typo?
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