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3 years ago

What is 2 3/4+(−1 1/8)?

Mathematics

1 answer:

Ilya [14]3 years ago

8 0

Answer:

$1\frac{3}{8}$

Step-by-step explanation:

Either you typed the question wrong, or the answers wrong. I double-checked with a calculator. The answer I got isn't one of the options :/

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Tap A fills a tank in 4hours while B fills the same tank in 3hours. Tap C empties this tank when full in 2hours. If the tank is

boyakko [2]

Answer:

<em>It will take 12 hours to fill the tank</em>

Step-by-step explanation:

Proportions

Tap A fills a tank in 4 hours. It means each hour it fills 1/4 of the tank.

Tap B fills the tank in 3 hours. Each hour it fills 1/3 of the tank.

Tap C empties the tank when full in 2 hours. Each hour it empties 1/2 of the tank.

Each hour, the tank gets filled by:

$\displaystyle \frac{1}{4}+\frac{1}{3}-\frac{1}{2}=\displaystyle \frac{3}{12}+\frac{4}{12}-\frac{6}{12}=\frac{3+4-6}{12}=\frac{1}{12}$

Since the tank fills 1/12 of its capacity in one hour, it follows that it will take 12 hours to fill the tank

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3 years ago

5m -2(m + 2) = -(3m +15)

Nostrana [21]

Answer:

m = -11/6

Step-by-step explanation:

5m -2(m + 2) = -(3m +15)

5m - 2m - 4 = -3m - 15

3m + 3m = -15 + 4

6m = -11

m = -11/6

3 0

3 years ago

Read 2 more answers

Jake is taking four of his friends to dinner. At the restaurant, a meal, side item, dessert, and drink cost $5.60. The first dri

KonstantinChe [14]

It's the third one! Hope this helps:3

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3 years ago

Ed is doing a survey of popular colors for cars for a school report. He decides to take a sample by sitting near a busy intersec

shepuryov [24]

There are 12 more white and blue cars than silver and red cars.

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3 years ago

Select all the options that have the same value as 3 1/2% of 20?

r-ruslan [8.4K]

Solution:

As, we have to find , $3 \frac{1}{2} of 20=\frac{7}{2}$ % of 20

$= \frac{7}{2\times 100}\times 20\\\\ = \frac{7}{10} \\\\ =0.70$

If we have to Percent of a certain number it means , divide that number by 100 , for example x% means $\frac{x}{100}$ .

And if i am writing , x% of y it means , $\frac{xy}{100}$ .

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3 years ago