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2 years ago

Maggie took a walk. she left at 10:30am and got home at 1:45pm. how long was she gone?

Mathematics

2 answers:

PilotLPTM [1.2K]2 years ago

7 0

3 hours :15 minutes

hope this helps

pantera1 [17]2 years ago

6 0

The answer is 3 hours and 15 minutes.

Good Luck!

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The spinner is equally likely to land on any of the five sections. A spinner contains 5 equals sections labeled 1, 2, 3, 4, 5. S

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Three-fifths

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2 years ago

Ben and winston ade both selling cookie dough for a fundraiser. Although ben has already sold 10tubs, Winston

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Step-by-step explanation:

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3 years ago

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Time taken for 87% decay:

Since decay is first-order, we will use the formula:

$t = \frac{2.303}{decay constant}log(\frac{A_0}{A} )$

Where A₀ is the initial amount and A is the final amount

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Final amount = 100*87/100 = 87 mg

Replacing the values in the equation:

$t = \frac{2.303}{0.01925}log(\frac{100}{87} )$

$t = \frac{2.303}{0.01925}*0.06$

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We used 'hours' as the unit because the unit of the decay constant is '/hour'

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