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3 years ago

Frank's gas tank is 1/2 full. After he buys 7 gallons of gas, it is

Mathematics

2 answers:

Masteriza [31]3 years ago

5 0

It's 28. here's proof 1/4 is 7, 1/2 is 14, 3/4 is 21, and 4/4 is 28.

liubo4ka [24]3 years ago

4 0

Hi!

The answer is 28 because 7 gallons = 1/4, therefore, 28 = 4*7.

Hope this helps!

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What is the best approximation of the length of segment QS? (Note: cos 80° = 0.17)

matrenka [14]

Answer: $QS=11.8cm$

Step-by-step explanation:

1. You have the following information:

- The lenght of $RS$ is 2 centimeters.

- The angle m∠S=80°.

- Cos80°=0.17

2. Therefore, you can calculate the lenght of the segment $QS$ as following:

$cos80=\frac{adjacent}{hypotenuse}$

$adjacent=2cm\\hypotenuse=QS\\cos80=0.17$

3. Substitute values and solve for $QS$ :

$0.17=\frac{2cm}{QS}\\QS=\frac{2cm}{0.17} \\QS=11.76cm$

4. To the nearest tenth:

$QS=11.8cm$

6 0

3 years ago

ASAP.....................................

Tasya [4]

Answer:

- 2/3

Step-by-step explanation:

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6 0

3 years ago

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Can someone also explain how to get the answer thank u

goblinko [34]

Answer:

$m = -\frac{194}{3}$

Step-by-step explanation:

I'm assuming you are trying to find m. In order to do so, you need to get m on one side.

Before doing that let's multiple -2 and -3m by $\frac{4}{3}$

$256=-\frac{8}{3} - 4m$

add $-\frac{8}{3}$ to both sides

$258\frac{2}{3}=-4m$

I would get rid of the fraction so I'd multiply both sides by $\frac{3}{1}$

$\frac{776}{3}*3 = 4m*3$

$776=-12m$

divide both sides by -12m

$m = -\frac{776}{12}$

which can be simplified to

$m = -\frac{194}{3}$

ALL UNLESS THAT $\frac{4}{3}$ IS A POWER

3 0

3 years ago

Twenty three less than sum of forty nine and thirty seven what is the answer?

Charra [1.4K]

Answer:

63.

Step-by-step explanation:

49 plus 37 is 86. subtract that by 23 and you get 63.

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3 years ago

Divide.

liubo4ka [24]

Answer:

14.0328

Step-by-step explanation:

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3 years ago

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