Which equation represents a line that is perpendicular to the graph of the line
-2y = 4x + 10?

-2y=4x+10

in order to solve this linear equation, we need to group all the variables terms on one side, and all the constant terms on the other side of the equation.

In our example

-term 10, will be moved to the left side .

Notice that a term changes sign when it

'moves' from one side of the equation to the other.

-2y+(-10)=(4x+10)+(-10)

We need to get rid of expression parentheses.

If there is a negative sign in front of it, each term within the expression changes sign

Otherwise, the expression remains unchanged.

in our example ,there are a negative expression

-2y-10=4x+10-10

Answer : x= - y+5/2

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that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24