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Tatiana [17]
4 years ago
6

What does it mean to evaluate an expression?

Mathematics
2 answers:
Lunna [17]4 years ago
8 0
Evaluate an expression means to simplifying an expression down to a numerical value
Alekssandra [29.7K]4 years ago
6 0
It means to solve, or simplify the expression.

Let's give two examples.

1) 5 + 2²
    5 + 4
    9      <- We are trying to simplify/solve the expression to as far as we can. 
                 9 cannot be simplified, so the expression has been evaluated.

2) 4x - 5x + 9y
    -x + 9y          <- Can not be simplified any further so the expression has                                                been evaluated via. combining like terms.
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30 points and brainlist question on the photo number 25 only
pogonyaev
Length of rectangle: 4x+3
Perimeter of rectangle: 12x+10
Solving:
4x+3 + 4x+3= 8x+6
Now we have 8x+6 but, we still need our width.
12x+10 - 8x+6 = 4x+4
So now, since we only have 4x+4 left for our width, we are going to divide that by 2 because in a rectangle, there are 2 lengths and 2 widths.
So in conclusion, the width of the rectangle is 2x+2
Glad I could help!
And also, can you please mark my answer as the brainliest answer?
Thanks.
8 0
3 years ago
Solve the equation 7b-27=8(6+4b)
Snowcat [4.5K]

Answer:

b = -3

Step-by-step explanation:

7b-27=8(6+4b)

Distribute

7b -27 = 48 + 32b

Subtract 7b from each side

7b-7b-27=48+32b-7b

-27 = 48+25b

Subtract 48 from each side

-27-48 = 48+25b -47

-75 = 25b

Divide each side by 25

-75/-25 =25b/25

-3 =b

3 0
3 years ago
Read 2 more answers
I don’t have a graphing calculator, please help!
Misha Larkins [42]

Answer: is your  first option

Step-by-step explanation:

after going over all the available equations, your first option is the only one that had results that were much more reasonable than the others. hope it helps.

4 0
3 years ago
When dividing or multiplying both sides of an inequality by a negative number, you?
drek231 [11]

Answer:

Flip the sign.

Step-by-step explanation:

For example if it was -2<3 youd flip the sign when you get your answer. So it would be -2>3 except itd be your answer. I just made this problem up but flip the sign!

3 0
3 years ago
Help me please FATS GEOMETRY
ohaa [14]

Answer:

i think 15

Step-by-step explanation:

6 0
3 years ago
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