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Elden [556K]
3 years ago
15

Bethany finished her math homework at 4:20 p.M. She did 25 multiplication problems in all. If each problem took her 3 minutes to

do, at what time did Bethany start her math homework?
Mathematics
1 answer:
koban [17]3 years ago
8 0
<h2>Answer:</h2><h2>Bethany started het homework at 3.05 PM approx 3 PM.</h2>

Step-by-step explanation:

The number of problems completed by Bethany = 25

The time taken to complete 1 problem = 3 minutes

The time taken to complete 25 problems = 25 * 3 = 75 minutes

Bethany finished her math homework at 4:20 p.M.

So she started 75 minutes 4.20 PM, (i.e) 3.05 PM or

approx around 3 PM.

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The simplification of the given expression (4-5i)(2+6i)-(3-2i), we get -30i^2+16i+5.

Given expression is:

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By applying the multiplication, we get

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brainly.com/question/19593573

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