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3 years ago

When my car's gas tank is 80% empty, it contains 3 gallons of gas. How many gallons

Mathematics

2 answers:

ziro4ka [17]3 years ago

8 0

Answer:

12 gallons of gas

Step-by-step explanation:

20% full = 3 gallons

20 x 4 = 80%

3 x 4 = 12 gallons

Fofino [41]3 years ago

3 0

The answer is 12 gallons

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Geometry distance formula

viktelen [127]

A(-4, 2) and B(3, -2).

I will do number 2.

Let d(A, B) = distance between the two points.

d(A, B) = sqrt{(3 -(-4))^2 + (-2-2)^2}

d(A, B) = sqrt{(3 + 4))^2 + (-2-2)^2}

d(A, B) = sqrt{(7)^2 + (-4)^2}

d(A, B) = sqrt{49 + 16}

d(A, B) = sqrt{65}

Done!

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4 years ago

Find y if the line through (1,y) and (5,7) has a slope of 6.

gtnhenbr [62]

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3 years ago

Read 2 more answers

A pharmaceutical testing company wants to test a new cholesterol drug. The average cholesterol of the target population is 200 m

Rom4ik [11]

Answer:

The required range is 237.5 to 275.

Step-by-step explanation:

Consider the provided information.

The average cholesterol of the target population is 200 mg and they have a standard deviation of 25 mg.

The the value of μ = 200 and the $\sigma=25$

The company wished to test a sample of people who fall between 1.5 and 3 z-scores above the mean.

Let the value of z is 1.5.

Now use the z score formula: $z=\frac{(x -\mu)}{\sigma}$

Substitute the respective values in the above formula.

$1.5=\frac{(x -200)}{25}$

$37.5=x -200$

$237.5=x$

Now let the value of z is 3.

Substitute the respective values in the z score formula.

$3=\frac{(x -200)}{25}$

$75=x -200$

$275=x$

Hence, the required range is 237.5 to 275.

4 0

4 years ago

pressed against the side of a building the ladder is 13 ft long and forms an angle of 70.5 degrees with the ground. how far is t

jeyben [28]

Answer:

35°, how far above the ground is: the kite? 4 q. 0tt. "S. 'K,' ... 13. A ladder 14 feet long rests against the side ofa building. Thebase of the ladder rests on level ground ... A 24-foot ladder leaning against a building forms an 18° angle with the side of the building.

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3 years ago

What is the perimeter of this figure A. 20m B. 21m C. 26m D. 27m

slega [8]

Answer:

Step-by-step explanation:

First subtract 7 and 4.

7-4=3

6-3=3

________

7+3+6+3+4

7+3=10

10+6=16

16+3=19

19+4=23

(Ignore the 3 inside the shape)

7 0

3 years ago