3 years ago

Please help with these questions and show how u found them! i will mark brainliest !

Mathematics

1 answer:

Georgia [21]3 years ago

7 0

Answer:

Step-by-step explanation:

Question 3

5 (k + 4) - 2k

Use distributive property of multiplication.

5k + 20 -2k

Combine like terms to get your answer.

3k +20

Question 4

2 (3 + d - 1)

Simplify the expression in the parenthesis.

2 (2 + d)

Use distributive property of multiplication.

4 + 2d

If you wanted it to be accepted at higher levels, switch the terms around.

2d + 4

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Write 77.5% as a fraction or mixed number in simplest form

goldfiish [28.3K]

31/40

Step 1: .775= 775/1000
Step 2: 775/1000= 31/40

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3 years ago

Is c^5 - 49 a difference of squares? <br> a. yes<br> b. no

gogolik [260]

No. Since we cannot factor,

$c^5-49$ .

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r3t40

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3 years ago

What fractions are greater than 7/12

Vsevolod [243]

Answer:

8/12 and higher. To ensure an accurate answer, are there other fractions to compare "7/12" to?

Step-by-step explanation:

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2 years ago

A line goes through the point (6,-2) and has a slope of -3. What is the value of a if the point (a,7) lies on the line?

Vikki [24]

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\$

From the question the slope is - 3

To find the value of a we have

$- 3 = \frac{7 - - 2}{a - 6} \\ - 3 = \frac{7 + 2}{a - 6} \\ - 3(a - 6) = 9 \\ - 3a + 18 = 9 \\ - 3a = 9 - 18 \\ - 3a = - 9$

Divide both sides by - 3

$\frac{ - 3a}{ - 3} = \frac{ - 9}{ - 3} \\$

We have the final answer as

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3 years ago

Read 2 more answers

a rug shaped like a rectangle has a width of 3 m. the length if the rug is 2 m greater than its width. what is the perimeters of

irina1246 [14]

Yes it is 16, you do (3+3)+{(3+2)+(3+2)}

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