An elf ate 15 of your muffins. that was 5/8 of all of them. how many are left?
1 answer:
Answer: 9
Step-by-step explanation:
An elf ate 15 of your muffins and that was 5/8 of all of them. To get the number of muffins left goes thus:
We can first calculate the total number of muffins the person had. Let the total number of muffins be y. That means the elf ate 5/8 of y.
5/8 of y = 15
5/8 × y = 15
0.625 × y = 15
0.625y = 15
Divide both side by 0.625
0.625y/0.625 = 15/0.625
y = 24
The total amount of muffins is 24. Since the elf has eaten 15, the amount left will be: 24-15 = 9
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m∠acb = x + 30
m∠cbd = 5x − 50
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2x+x+30 = 5x-50
2x+x-5x = -50-30
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