Carl buy songs and download them to his computer. the bar graph shows the numbers of each type of song he downloaded last year.
what total numbers of song Carl’s downloaded last year?
2 answers:
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Answer:
1. 4.5 g
2. 56.25 g
Step-by-step explanation:
3 % substance solution means :
3 g of dry substance is present in 100 g of solution.
By unitary method:
The weight of dry substance in 1 g of solution =
The weight of dry substance in 150 g of solution =
Let the weight of solution be w.
8 % solution contains 8 g dry substance in 100 g.
We have to find the weight of the solution(w) which contains 4.5 g of dry substance.
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