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Arisa [49]
3 years ago
12

Combine like terms:

Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0
-21a + 16a = -5a

5(x + 10) + x = 5x + 50 + x = 6x + 50
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What is the perimeter of the shaded triangle
astraxan [27]
What units are you using
8 0
3 years ago
Find the midpoint of the line segment
strojnjashka [21]

Answer:

midpoint (5,4)

Step-by-step explanation:

The midpoint(M) of a segment with endpoints (x₁ , y₁) and ( x₂,  y₂) is

where x₁ = 2 and x₂ = 8

y₁ = 0 and y₂ = 8

M = \frac{x_1 + x_2}{2} ,\frac{y_1 + y_2}{2}

M = \frac{2 + 8}{2} ,\frac{0 + 8}{2}

M = 5 , 4

5 0
2 years ago
How can you tell that −10 and −20 are solutions to this inequality, but 10 is not? 3n − 40 < −5n + 8
pochemuha

Step-by-step explanation:

-10 or -20 satisfies the equation.

But when you substitute 10 in:

30-40<-50+8

-10<-42(wrong)

it's wrong

6 0
2 years ago
Lowest common multiple of 20 and 54
Ivahew [28]
The LCM is 540 because 54X10=540 which 20 goes into
8 0
3 years ago
Find three consecutive even numbers whose sum is 96?
stepladder [879]
So consectuve even numbers

we know that one even number plus 2= another even number so we want to find 3 consecutive even numbers that add up to 96 or
x is the first number
x+2 is the second number
x+4 is the third number

x+x+2+x+4=96
3x+6=96
subtract 6 from both sides
3x=90
divide both sides by 3
x=30

the first number is 30
x+2=32=second number
x+4=34=third number

the numbers are 30,32,34
3 0
3 years ago
Read 2 more answers
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