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3 years ago

Which expression is equivalent to 12/7 + 15

Mathematics

1 answer:

Katen [24]3 years ago

3 0

To solve this just put a 1 over the 15. So it would be 12/7 + 15/1 which is 16 5/7.

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14/15 divided by 7/5

Charra [1.4K]

9514 1404 393

Answer:

2/3

Step-by-step explanation:

There are a couple of different ways that division of fractions can be done.

1) "invert and multiply"

$\dfrac{14}{15}\div\dfrac{7}{5}=\dfrac{14}{15}\times\dfrac{5}{7}\\\\=\dfrac{14}{7}\times\dfrac{5}{15}=\boxed{\dfrac{2}{3}}$

2) use the numerators when the denominators are the same

$\dfrac{14}{15}\div\dfrac{7}{5}=\dfrac{14}{15}\div\dfrac{21}{15}\\\\=\dfrac{14}{21}=\boxed{\dfrac{2}{3}}$

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3 years ago

Alex got 27 questions out of 30 correct. what present of the questions did he get correct?(use fish method)

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if we take 30 to be the 100%, what is 27 off of it in percentage?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 30 & 100\\ 27& x \end{array} \implies \cfrac{30}{27}=\cfrac{100}{x} \\\\\\ \cfrac{10}{9}=\cfrac{100}{x}\implies 10x=900\implies x=\cfrac{900}{10}\implies x=90$

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1 year ago

Question 1 of 10

sp2606 [1]

20 raise the power 7

Step-by-step explanation:

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2 years ago

Select the two pairs of figures that are similar.

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Answer:

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Step-by-step explanation:

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3 years ago

How many odd numbers are between 20-100?

cestrela7 [59]

Answer:

there are forty odd numbers

Step-by-step explanation:

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Read 2 more answers