Answer:
The number is 8.
Step-by-step explanation:
Rewrite the word problem as an equation.
The sum of (we will be adding.), half of a number (we can use x, this will be written as x/2.) and double the number (this will be written as 2x) is 20.
To find the number, solve the equation.
x/2 + 2x = 20
Multiply both sides by 2.
x + 4x = 40
Combine terms.
5x = 40
Divide both sides.
x = 8.
Answer:
It's B :)
Step-by-step explanation:
Answer:
z+7-z+9
Step-by-step explanation:
Answer:
y-intercept = 1
slope = 4
Step-by-step explanation:
The y-intercept is where the line intersects with the y.
And the slope is rise over run, so it rises 4 and walks over 1, therefore the slope is 
which simplifies to 4.
Hope this helped! :)
Answer:
Not a function
Step-by-step explanation:
a function will have only a single possible output for any given input. Here we see that an input of 3 can map to an output of either 2 or 7.
