Round the following factors to estimate the products
1 answer:
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Answer: The copy machine makes 171 copies in 4 minutes and 45 seconds.
Step-by-step explanation:
Let's dissect the question. The copy machine makes 36 copies per minute.
36 per min.
To see how many copies it makes in 4 minutes and 45 seconds, we multiply 36 * 4.75. 45 seconds is 3/4ths of a minute, or 0.75 of a minute.
It makes 171 copies in 4 minutes and 45 seconds.
The sale is 33% off notebooks. This can be found by first subtracting .8 from 1.2
1.2-.8=.4 Now divide .4 by 1.2 to get your answer.
=.33
.33=33%
You can also solve this mentally because if you know your basic multiplication tables, 3*4=12 and so
of 12 would equal 8.
Does you understand it now?
1.2-.8=.4 Now divide .4 by 1.2 to get your answer.
.33=33%
You can also solve this mentally because if you know your basic multiplication tables, 3*4=12 and so
Does you understand it now?