A backpack that normally sells for $40 is on sale for $30. Find the percent decrease
1 answer:
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Answer:
Minti - 12 days
Minti & Rinki - 8 days
Use Formula 3
time= (12 * 8) / (12 -8)
time = 96 / 4
time for Rinki alone = 24 Days
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Rinki alone for 4 days will leave 20 days of work to be done.
Step-by-step explanation:
This is a basic algebraic fraction question
Step 1: Factor n2-9
Step 2: Rewrite the second fraction
Step 3: Write all the numerators under the least common denominator
Step 4: Expand bracket
Step 5: Collect like terms
