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barxatty [35]
3 years ago
13

Anna's math test grade was 7 points less than her science test grade. The average grade was 91.5%. What did she get on each test

?
Mathematics
1 answer:
denis23 [38]3 years ago
6 0

Answer:

84.5%

Step-by-step explanation:

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1x10 to the fifth power over 4x10 to the negative faith power given on scientific notation
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Answer:

2.5*10^{8}

Step-by-step explanation:

<u><em>The correct question is</em></u>

1x10 to the fifth power over 4x10 to the negative fourth power given on scientific notation

we know that

To divide two numbers in scientific notation, divide their coefficients and subtract their exponents.

we have

\frac{1*10^{5}}{4*10^{-4}}=(\frac{1}{4})*10^{5+4} =0.25*10^{9}= 2.5*10^{8}

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