Answer:
Step-by-step explanation:
The given expression that represents the volume of the rectangular prism is:
We can rewrite this to reveal a perfect square pattern.
We factor using perfect squares to obtain:
Volume is three dimensional so we need a third factor different from 1.
We further factor one of the difference of two squares to get:
So pick the following unique dimensions from the possible answers:
Answer:
41
Step-by-step explanation:
Ok, so the time for homework is already simplified to minutes.
2/3 of an hour is x/60
60/3 = 20
20*2 = 40
so 2/3 = 40/60
40/60 = 40 minutes
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540 seconds is..
540/60
54/6=9
9 minutes
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40+9 = 49
90-49 = 41
So, he spent 41 more minutes on homework than on making lunch and reading.
Answer:
a. 2.5 min
b. 0.4 laps a min
c. 100 min or 1 hour and 40 min
Step-by-step explanation:
Answer:
When Famke charges her phone, it gains 2 percentage points each minute. When Famke uses her phone, it loses 5 percentage points each minute.
Once, Famke used her phone for some time, and then charged it for twice the amount of time she used it. In the end, her phone lost 10 percentage points.
How long did Famke use her phone and how long did she charge it?
Step-by-step explanation: