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jay3676
07.06.2021 •
Mathematics
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A hardware store receives shipments containing 600 light bulbs each. A sample of 75 light bulbs in a given shipment contains 3 that are defective. What is the sample ratio of defective light bulbs to total light bulbs in the shipment written as a percent?
A - 4%
B - 10%
C - 20%
D - 76%
Solved
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Ответ:
Ответ:
n = -7 1/4 OR n = -7.25 OR n = -29/4
Step-by-step explanation:
(2n + 4) + 6 = -9 + 4(2n + 1)
Distribute
12n + 24 = -9 + 8n + 4
Combine like terms for the right side
12n + 24 = -5 + 8n
Add 5 to both sides
12n + 29 = 8n
subtract 12n to both sides
29 = -4n
Divide both sides by -4
-7 1/4 = n