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4 years ago

5

Que es suma y resta de fracciones homogeneas

1 answer:

jek_recluse [69]4 years ago

3 0

Answer:

responder

Step-by-step explanation:

Para sumar y restar fracciones, sus denominadores deben ser iguales. Por tanto, sumar o restar fracciones homogéneas es más fácil, dado que ya tienen el mismo denominador.

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John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

$\frac{7}{11}(x-110)=\frac{7}{11}x-70$

Then he put 2/5 of his remaining money into a checking account

$\frac{3}{5}\left(\frac{7}{11}x-70\right)$

Rest he donated to charity

$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$

Hence total amount of money John originally had was $1210

8 0

3 years ago

A company needs 713 slices of pizza for a company party. If each pizza is cut into 8 slices, about how many whole pizzas should

alukav5142 [94]

Answer:

D

Step-by-step explanation:

To find the number of WHOLE pizzas needed, we need to divide the total number of slices needed (713) by 8 slices. Thus

$\frac{713}{8}=89.125$

<em>because we can't order fractional pizza, we need to round up. So we will need 90 pizzas.</em>

<em>Correct answer is D.</em>

3 0

3 years ago

Which expression represents the phrase, "one fifth the sum of 14 and a number"?

Whitepunk [10]

1/5(14 + x)
That's the answer buddy. I just took the test.

7 0

3 years ago

Read 2 more answers

Which fee could decrease an investor’s return on investment when the investor may not have bought or sold any stock for a signif

Dvinal [7]

Answer:

inactivity fee for plato users :)

Step-by-step explanation:

3 0

3 years ago

Write an equivalent expression by distributing the "−" sign outside the parentheses:<br> 9.8w-(7x-1)

Crazy boy [7]

Answer:

9.8w-7x+1

Step-by-step explanation:

9.8w-(7x-1)

Distribute the minus sign to each term in the parenthesis

9.8w-7x - -1

A negative negative is a positive

9.8w-7x+1

7 0

3 years ago