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3 years ago

Use the ratio table to solve the percent problem. What percent is 12 out of 20?

Mathematics

2 answers:

dangina [55]3 years ago

8 0

Answer:

It would be 60%.

Step-by-step explanation:

To find the answer, you would have to do x/100 = 12/20. You would cross multiply leaving you with 20x=1200 you would then divide by 20. This would leave you with the answer of 60. Therefore, your answer is 60%.

weqwewe [10]3 years ago

7 0

Answer: 60%.

Step-by-step explanation:

From the question, 12 : 20 = x

Let the missing value be x.

12/ 20 x 100/1 = 60%

Therefore 12 out of 20 is 60%.

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After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(6, 3), B'(-2, 1),

Rasek [7]

Answer:

A(-3, 6), B(-1, -2), C(-7, 1)

Step-by-step explanation:

To the pre-image after a 270°-counterclockwise rotation [90°-clockwise rotation], just reverse it by doing a 270°-clockwise rotation [90°-counterclockwise rotation]:

Extended Rotation Rules

270°-clockwise rotation [90°-counterclockwise rotation] >> (x, y) → (-y, x)
270°-counterclockwise rotation [90°-clockwise rotation] >> (x, y) → (y, -x)
180°-rotation >> (x, y) → (-x, -y)

So, perform your rotation:

270°-clockwise rotation [90°-counterclockwise rotation] → C'[1, 7] was originally at C[-7, 1]

→ B'[-2, 1] was originally at B[-1, -2]

→ A'[6, 3] was originally at A[-3, 6]

I am joyous to assist you anytime.

3 0

3 years ago

Read 2 more answers

Which table of values is represented by this rule?

kari74 [83]

To solve:

Take 2 and multiply it by 2.6 (because 2 and six-tenths times a number is $2\frac{6}{10}$ and that converts to 2.6)

If you multiply it, you get 5.2. And after that, you add 5 to that and you get 10.2. So the answer to this question will be B.

3 0

3 years ago

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Substitute the values of x and y into the expression -3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y^2. Match that value to one of the numbe

Tomtit [17]

1.=-1
2.=-11.25
3.=14
4.=0.44
5.=1.665
6.=9.17

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3 years ago

Join 78902567210 ... kmnj76 .............

erik [133]

Answer:

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Step-by-step explanation:

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3 years ago

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The distance from the earth to the moon is 3.84 x 105 km

Anarel [89]

Part (a)

<h3>Answer: $3.84 \times 10^8 \text{ meters}$ </h3>

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Explanation:

Multiply by 1000 to go from km to meters.

This is because 1000 m = 1 km.

Multiplying by 1000 in scientific notation means we add 3 to the exponent 5. The 3 is because 1000 = 10^3.

So the $3.84 \times 10^5 \text{ km}$ becomes $3.84 \times 10^8 \text{ meters}$

===========================================================

Part (b)

Answer in standard form: 960,000 seconds

Answer in scientific notation: $9.6\times10^{5} \text{ seconds}$

---------------------

Work Shown:

$\text{distance} = \text{rate}*\text{time}\\\\\text{time} = \frac{\text{distance}}{\text{time}}\\\\\text{time} = \frac{3.84 \times 10^8 \text{ meters}}{400 \ \text{ m}/\text{s}}\\\\\text{time} = \frac{3.84 \times 10^8}{4 \times 10^2} \text{ seconds}\\\\\text{time} = \frac{3.84}{4}*\frac{10^{8}}{10^2} \text{ seconds}\\\\\text{time} = 0.96 \times 10^{8-2} \text{ seconds}\\\\\text{time} = 0.96\times 10^{6} \text{ seconds}\\\\$

$\text{time} = (9.6\times10^{-1})\times10^{6} \text{ seconds}\\\\\text{time} = 9.6\times(10^{-1}*10^{6}) \text{ seconds}\\\\\text{time} = 9.6\times10^{-1+6} \text{ seconds}\\\\\text{time} = 9.6\times10^{5} \text{ seconds}\\\\\text{time} = 960,000 \text{ seconds}\\\\$

To go from the scientific notation to standard form, move the decimal point 5 spaces to the right. The 5 is from the exponent.

3 0

2 years ago