Jerod is making candles from beeswax. He has 132.72 ounces of beeswax. If each candle uses 8.4 ounces of beeswax, how many candl
1 answer:
Answer:
15 candles and 6.72 ounces left over.
Step-by-step explanation:
Jerod has the amount of beeswax = 132.72 ounces
Jerod is making candles from beeswax.
one candle uses the amount of beeswax = 8.4 ounces
Total candles can be made from total beeswax =
= 15.8
With 132.72 ounces wax 15 candles were made.
In order to calculate the left over wax we calculate the amount is used in 15 candles
= 8.4 × 15 = 126 ounces
Left over wax = 132.72 - 126 = 6.72 ounces
Therefore, 15 candles can be made and 6.72 ounces wax would be left over.
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Given that a medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A total of 389 older Americans who lived at home and were in good health were studied over a three-year period. While all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin D through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin D daily. Of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. Of the 202 older Americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.
Group I Group II Total
n 187 202 389
favour x 11 26 37
The fraction of older Americans who were included in the study suffered broken bones during the three-year period
=Total x/total n
=