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3 years ago

Which expressions are equivalent to 4(x+1) + 7(x+3)? Select two answers.

Mathematics

1 answer:

Natalija [7]3 years ago

7 0

Answer:

9(x+3) + 2(x+3) or 10(x+2) +(x+5)

Step-by-step explanation:

First you want to distribute the equation.

4(x+1) + 7(x+3) multiplied out is

4x + 4 + 7x + 21

Now we add like terms so it comes out to

11x + 25

Two expressions that can come out to equal 11x + 25 is. 9(x+3) + 2(x+3) or 10(x+2) +(x+5)

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The following table shows the number of snow days each school district in Mill County had last winter.

shtirl [24]

Answer:

The answer is 5.

Step-by-step explanation:

7 0

4 years ago

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Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10. What is the number?

Bezzdna [24]

Answer:

The product of 10 and a number is = 10x Twice that number means 2x 36 less than twice that number= 2x-36. It is given that....The product of 10 and a number is the same as 36 less twice that same number

Step-by-step explanation:

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3 years ago

Hi i am having trouble with this question can some one help me on it i heard this app really helps you understand question i mig

Evgen [1.6K]

Answer:

n = -1

Step-by-step explanation:

Guess your question is to find n

Given:

-6 + 3n = -9

Add 6 to both sides

-6 + 6 + 3n = -9 + 6

3n = -3

Divide both sides by 3

n = -3 / 3

= -1

n = -1

Check:

-6 + 3n = -9

-6 + 3(-1) = -9

-6 - 3 = -9

- 9 = - 9

6 0

3 years ago

45 Points! Please explain your answer! Brainliest to whoever does the best!

Alex73 [517]

Answer:

$\sf \boxed{\sf \frac{3}{2} } \ miles \ per \ day$

Explanation:

$\sf unit \ rate: \dfrac{Total \ distance \ (miles)}{Total \ time \ taken \ (day)}$

Here given:

$Total \ Distance : 8\dfrac{1}{4} \ or \ 8.25$

$Total \ Time \ taken : 5\dfrac{1}{2} \ or \ 5.5$

Find unit rate:

$\rightarrow \sf unit \ rate: \dfrac{8.25 }{5.5 }$

$\rightarrow \sf unit \ rate: 1.5 \ miles \ per \ day$

7 0

2 years ago

What is the exact value of BC? A. 3.16 B. 5\|2 C. 7.07 D. 25

Natalija [7]

Answer:

$C. \: \: 7.07$

Step-by-step explanation:

Coordinates of B are

$(5,5)$

Coordinates of C are

$(4, - 2)$

Distance between two points

$\sqrt{({x_2 - x _1 {)}^{2} + (y_2 - y_1 {)}^{2} }}$

Distance of BC

$\sqrt{(4 - 5) {}^{2} + ( - 2 - 5 {)}^{2} }$

$\sqrt{ { (- 1}^{2}) + ({ - 7}^{2}) }$

$\sqrt{1 +49 }$

$\sqrt{50}$

$7.07$

3 0

2 years ago