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ANEK [815]
3 years ago
13

Which expression has the sum of twenty six twentieths? (4 points) Selected:a. two fifths plus four tenthsThis answer is incorrec

t. b. four fifths plus two fourths c. one half plus three tenths d. three fourths plus two fifths
a is wrong
Mathematics
1 answer:
patriot [66]3 years ago
8 0

Answer: b. four fifths plus two fourths

Step-by-step explanation: Change the fractions to their equivalents in 20ths-- like finding the common denominator.

Divide the original denominator into 20, then multiply the result by the original numerator to get the new numerator.

4/5  <em>20/5 = 4    4×4 = 16   so 4/5 is equivalent to 16/20</em>

2/4   <em>20/4 = 5    5×2 = 10   so  2/4 is equivalent to 10/20   </em>

Add:    16/20 + 10/20 = 26/20

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Answer:

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2 years ago
{4x+10y=8<br>{4x+3y=22<br><br>x=<br>y=​
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3 years ago
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F(t) = t-1<br> g(t)= t^3 + 4t<br> Find (f -g)(t)
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Answer:

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5 0
3 years ago
Answer these 4 for me please help me step by step
tangare [24]

4.

The equation we have is:

\frac{8}{5}a=-6

To solve for "a", we want to isolate it in one side.

For this. we can start by multiplying each side by 5. This will make the denominator to cancel out:

\begin{gathered} 5\cdot\frac{8}{5}a=5\cdot(-6) \\ 8a=-30 \end{gathered}

Now, we can divide both sides by 8, which will cancel the coefficient 8 multiplying "a":

\begin{gathered} \frac{8a}{8}=-\frac{30}{8} \\ a=-\frac{15}{4} \end{gathered}

And that is the answer to 4.

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