Answer:
9. -4x+19y-7
10. 7x+20
Step-by-step explanation:
9. To simplify this expression, simply combine like terms. Add all of the terms with the x variable together, then the terms with the y variable, then the constant terms. I will show this step by step, but usually you do not have to show this work. The order of the terms does not matter.
x variable terms: (4x-8x)+7y-2+6y+6y-5= -4x+7y-2+6y+6y-5
y variable terms: (7y+6y+6y)-4x-2-5=19y-4x-2-5
constant terms: (-2-5)-4x+19y=-4x+19y-7
10. To simplify this expression, expand all terms and then combine like terms. The first term can be expanded by multiplying each term in the parentheses by 2.
Expand terms: 2(5+3x)+(x+10)= 10+6x+x+10
Now, you can combine like terms as done on the last problem. Note that I got rid of the parentheses in the second term, as they did not matter (since there was no term in front of them).
x variable terms: (6x+x)+10+10=7x+10+10
constant terms: (10+10)+7x=7x+20
Answer:
D
Step-by-step explanation:
D is not a function because x's repeat. Each x value should have its own unique y value. The graph also fails the vertical line test, meaning that if you were to draw a vertical line anywhere on the graph it would intersect with more than one point.
Answer:
The contribution margin it's determined by the total amount of Gross Profit divided by the total value of sales.
Profit = $405,000
Sales = 11,250×106 =$1,192,500
Therefore contribution margin ratio = ($405,000/$1,192,500) = 0.34
The Break Even point is given thus;
Fixed cost = 25 × 11250 =$281,250
Break-even point = Fixed costs ÷ contribution ratio
= $281,250/0.34 = $827,205.88
You can do 8*6 to find the area to be 48 ft. squared. So then we can do:
$1134/48 ft. to find the price per foot to be $23.63, or $24 rounded up
Hope this helps
Answer:
91
Step-by-step explanation:
Just do 130-30% and you get 91.