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3 years ago

B. Translate each equation into a verbal phrase.

Mathematics

1 answer:

Elina [12.6K]3 years ago

6 0

Answer:

1.a minus five minus twelve

2.Positive twenty five minus fifty eight

3.Six a plus 9 is equal to thirty

4.Four x plus fifteen minus eighty

5.Ten h minus 9 is equal to sixty nine

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According to the scores on the last math test, 80%, or 20, of the students in the class received an A. Find the number of studen

Sladkaya [172]

80% is the same as 4/5, so 4/5 of the class= 20. That means that if there was a picture, 4 parts would be shaded, and 1 would not. 1/4 of 20 is 5, so 1 part= 5 people. 5 x 5 = 25. 25 is the answer. :)

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3 years ago

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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

<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%28x%20-%20%20%5Cfrac%7B2%7D%7B9%7D%20%29%28x%20%2B%20%20%5Cfrac%7B1%7D%7B2%7

Aleonysh [2.5K]

$f(x) = (x - \dfrac{2}{9} )(x + \dfrac{1}{2} )$

$\text {When } f(x) = 0 :$

$(x - \dfrac{2}{9} )(x + \dfrac{1}{2} ) = 0$

$(x - \dfrac{2}{9} ) = 0 \text { or } (x + \dfrac{1}{2} ) = 0$

$x = \dfrac{2}{9} \text { or } x = -\dfrac{1}{2}$

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4 years ago

Three-fourths of the voters supported the bond measure. If there were

vodka [1.7K]

Answer:

6000

Step-by-step explanation:

Divide top and bottom by the common factor.

$\dfrac{3 }{4} \times 8000 = 3 \times 2000$

Simplify

3 × 2000 = 6000

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3 years ago

Landon owns a hybrid SUV that can travel 400 miles on a 15-gallon tank of gas. Determine how many miles he can travel on 6 gallo

ss7ja [257]

There are few ways to count it. One of them is:

400 miles on 15-gallon tank
400 / 15 = 26,66666666666667 miles per 1 gallon (looks weirdly but we'll get a nice result in a second)
So 26,66666666666667 * 6 gallons = 160 miles

Answer: Landon's SUV can travel 160 miles on 6 gallons.

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3 years ago

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