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Solnce55 [7]
3 years ago
5

What is 4 and 1/4 -1 and 3/4

Mathematics
1 answer:
Sergio039 [100]3 years ago
8 0

Answer:

youre answer is:

2.5

hope this helps

Brainliest plz :)

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18 1/2 -2^3•(4 1/3 + 6 4/6)
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A student raises her grade average from a 75 to a 90. what was the percent of increase in the student's grade average? round you
Leona [35]
Here are some formulas...
percent increase = (new number - original number) / original number...* 100
percent decrease = (original number - new number) / original number...* 100
============
a student raises her grade from a 75 to a 90....since it is going from a smaller number to a larger number, u have an increase
percent increase = (90 - 75) / 70....* 100
                           =   15/70   * 100
                           = 0.2142 * 100
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-------------------------
36.50 on sale for 32.12...since it goes from a larger number to a smaller number, u have a decrease
percent decrease = (original number - new number) / original * 100
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------------------------------
23.5 to 21.2......this is a decrease
percent decrease = (original number - new number) / original...* 100
                            = (23.5 - 21.2) / 23.5....* 100
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3 0
3 years ago
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