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3 years ago

Which of the following is an equivalent simplified expression for 2(4x + 7) – 3(2x – 4) ?

Mathematics

1 answer:

meriva3 years ago

5 0

2(4x + 7 ) -3 ( 2x - 4 )
8x + 14 - 6x + 12 combine like terms.
2x + 14 + 12
2x + 26
Answer: C. 2x + 26

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How can you express (15 + 30) as a multiple of a sum of whole numbers with no common factor?

Zielflug [23.3K]

Use the distributive property to express the sum of the 2 whole numbers 15 and 30 with common factors as a multiple of two whole numbers with a sum of no common factor the solution would be (15 plus 30) = 15(1+2)

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2 years ago

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Part of a Whole Write a fraction to name the shaded part. (3.NF.A.1) Please help!

GREYUIT [131]

Number of parts: 6
Fraction:5/6

2:

Number of shaded parts: 1
Number of total parts: 4
Fraction: 1/4

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2 years ago

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Solve x2 + 5x = −6. (6 points)

Damm [24]

Answer:

x = -0.5

Step-by-step explanation:

You need to combine like terms

x * 2 + 5x = -6

Add x to 5x

6x * 2 = -6

Divide 2 from both sides

6x = -3

Divide 6 from both sides to get x alone

x = -0.5

Hope this helps

(\) QueTooOfficial (/)

6 0

2 years ago

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A bag contains 15 marbles. The probability of randomly selecting a green marble is One-fifth. The probability of randomly select

dsp73

Given:

Total number of marbles = 15

Probability of randomly selecting a green marble = $\dfrac{1}{5}$ .

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble = $\dfrac{2}{25}$ .

To find:

The number of blue marbles.

Solution:

Let the number of blue marbles be x.

$\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}$

$P(Blue)=\dfrac{x}{15}$

It is given that,

$P(Green)=\dfrac{1}{5}$

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble is $\dfrac{2}{25}$ . So,

$P(Green)\times P(Blue)=\dfrac{2}{25}$

$\dfrac{1}{5}\times \dfrac{x}{15}=\dfrac{2}{25}$

$\dfrac{x}{75}=\dfrac{2}{25}$

Multiply both sides by 75.

$\dfrac{x}{75}\times 75=\dfrac{2}{25}\times 75$

$x=2\times 3$

$x=6$

Therefore, the number of blue marbles in the bag is 6.

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2 years ago

Six times a number plus 7 is equal to 55. What is the number?

valkas [14]

Answer:

6x_+7=55, the answer is 13, why? well because if you add 6+7 you will have 13, now you can multiple that by 5, and you will have 55 as an answer, did I helped you?

5 0

2 years ago