Answer:
Step-by-step explanation:
4x + 3y + x + 4y
= 4x + x + 3y + 4y
= 5x + 7y
4x + 3y + 2x - y
= 4x + 2x + 3y - y
= 6x + 2y
4x + 5y - ( x + 4y )
= 4x + 5y - x - 4y
= 4x - x + 5y - 4y
= 3x + y
2x - y + 3x + y
= 2x + 3x - y + y
= 5x + 0
= 5x
Answer:
b. $1 in price is associated with a decrease of $8,000 in sales
Step-by-step explanation:
Linear function:
A linear function has the following format:
In which m is the slope, which represents by how much y changes when x changes by 1.
ŷ = 50,000 − 8x
This means that , in thousands of dollars, so when the price x increases by 1, the sales will be decrease by $8,000, and thus, the correct answer is given by option b.
Answer:
282 ft
Step-by-step explanation:
Area of 2 triangles = 6+6
= 12 ft
Area of 3 rectangles = 90+90+90
= 270 ft
therefore
the surface area = 12 + 270
= <u>282 ft</u>
I think that I am right
Answer:
5y3 has a degree of 3 (y has an exponent of 3) 3 has a degree of 0 (no variable)
Step-by-step explanation:
36 6th grade
24 7th grade
30 8th grade
Ratio of 7th graders : 8 graders = 24 : 30 . Divide through by 6
= 4 : 5