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AURORKA [14]
3 years ago
8

A college student needs 11 classes that are worth a total of 40 credits in order to complete her degree. The college offers both

4-credit classes and 3-credit classes. How many 4-credit classes does this college student need to complete her degree?
Mathematics
1 answer:
ipn [44]3 years ago
3 0
7 4-credit classes. 4 3-credit classes.

7*4 = 28, and 4*3 = 12. 11 classes, and 40 credits.
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Answer:

16, 8, 23

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Hope this helps :)

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Reduce then calculate 7/8 x 4/15 x 3/7 = ? <br><br> Can you help?
Zepler [3.9K]

since this is a multiplication, all the numerators are just factors of the product numerator and all denominators are just factors of the product denominator, so we can simply reorder them some, without changing the product.


\bf \cfrac{7}{8}\times \cfrac{4}{15}\times \cfrac{3}{7}\implies \cfrac{7}{7}\times \cfrac{4}{8}\times \cfrac{3}{15}\implies \cfrac{1}{1}\times \cfrac{1}{2}\times \cfrac{1}{5}\implies \cfrac{1\cdot 1\cdot 1}{1\cdot 2\cdot 5}\implies \cfrac{1}{10}

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3 years ago
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