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Evgen [1.6K]
4 years ago
12

–12 + (–7) + 11 how do i get it right it is hard math

Mathematics
1 answer:
VARVARA [1.3K]4 years ago
6 0

Answer:

-8

Step-by-step explanation:

-12 + (-7) + 11 combine like terms

-19 + 11  add + 11 to -19

-8

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12/8 es equivalente a 6/4<br>​
oksian1 [2.3K]

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yes

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3 years ago
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Mark walked 1,000 meters per day every day for one week how many kilometers did he walk all together?​
elena-s [515]

Answer:7

Step-by-step explanation:

1,000 meters is equal to 1 kilometer so it would be 7 pretty sure

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(PLEASE ANSWER THESE 3 QUESTIONS FOR 50 POINTS)
Bogdan [553]

answers

question 1 = -0.5

question 2 = 6 - 3y

question 3 = 3x + 6

question 1

to evaluate (x + 1)/3 when x = -2.5, plug the value of x into the equation

(x + 1)/3

= (-2.5 + 1)/3

= (-1.5)/3

= -0.5

question 2

to solve this, distribute the 1/2 through the parentheses

(1/2) * (4 − 6y + 8)

= (1/2 * 4) + (1/2 * -6y) + (1/2 * 8)

= 2 + (-3y) + 4

= 6 - 3y

question 3

to solve this, distribute the 3 through the parentheses

3(x + 2)

= (3 * x) + (3 * 2)

= 3x + 6

<em>note - i tried to plug -2.5 into x + (1/3) for question 1, but the answer wasn't among the solutions, so i assumed the equation was (x+1)/3 instead since its answer was among the solutions</em>

3 0
3 years ago
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-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
MaRussiya [10]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Murrr4er [49]

I am going to do this problem with more of an algebraic approach weather or not its the way your teacher wants you to do it like this.

The way to do things algebraically is to just set variables for what you want to find and set up equations to represent each sentence.

As seen there are hamburgers and chickens in this problem. So let's set the numbers of hamburgers to x, and the numbers of chickens to y.

Now write out each sentence using variables.

1.) Tia sold 78 hamburgers and chicken tenders.

x+y=78

2.) If she sold 24 more hamburgers than chicken tenders.

x=y+24

Now that we have the 2 equations, its time to solve.

Since we have x=y+24, we can replace the x in the first equation with the second equation

y+24+y=78

2y+24=78

Now we can subtract 24 from both sides.

2y=54

Simplify

y=27

Solve for x

x=27+24=51

Done!

6 0
3 years ago
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