Which of the following does point a represent? (Check all that apply.)
2 answers:
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ANSWER
250g of Roquefort cheese will cost
£2.8
EXPLANATION
If 150g of roquefort cheese cost £1.68, we can write the ratio,
Let 250g of Roquefort cheese cost £x.
Then we can again write the ratio,
We can equate the two ratios and solve for x.
We rewrite the ratios as fractions to obtain,
We cross multiply to get,
This implies that,
Divide both sides by 150 to get,
Therefore 250g of Roquefort cheese will cost
£2.8
250g of Roquefort cheese will cost
£2.8
EXPLANATION
If 150g of roquefort cheese cost £1.68, we can write the ratio,
Let 250g of Roquefort cheese cost £x.
Then we can again write the ratio,
We can equate the two ratios and solve for x.
We rewrite the ratios as fractions to obtain,
We cross multiply to get,
This implies that,
Divide both sides by 150 to get,
Therefore 250g of Roquefort cheese will cost
£2.8