5 biscuits cost 30p altogether how much do 7 biscuits cost
2 answers:
First, find out how much one biscuit costs. As there are 5 biscuits, you divide the total (30) by 5. 30 / 5 = 6. One biscuit costs 6p.
Now that you know how much one biscuit costs, you times your result by 7. 6 X 7 = 42. 7 biscuits cost 42p.
42p Because 5/30 is 6, and 6*7= 42 Hope this helps :)
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