Answer:
Problem 6: x = 12
Problem 7: x = 10
Step-by-step explanation:
<u>Problem 6:</u>
39 + 4 + 7x + 53 = 180
39 + 4 + 7x + 53 - 39 - 4 - 53 = 180 - 39 - 4 - 53
7x / 7 = 84 / 7
x = 12
Answer: x = 12
<u>Problem 7:</u>
5x + 6x - 5 + 75 = 180
5x + 6x - 5 + 75 - 75 + 5 = 180 - 75 + 5
11x / 11 = 110 / 11
x = 10
Answer: x = 10
Answer: $783.12
Step-by-step explanation:
First find 4% of 753
753 * 4 / 100 = 30.12
30.12 is the sales tax
753 + 30.12 = 783.12
Answer:
30x - 18
Step-by-step explanation:
First, you would use the distributive property to get rid of the parenthesis and to simplify your equation.
6 * 5x gives you 30x and 6 * -3 is equal to -18
This gives you 30x - 18
Answer:
9) y>0 or y<−14 10) Each artwork sold for $34.4
Step-by-step explanation:
#9 is fairly easy, just plug in a calc and pull out ans.
#10 so he needs to make $300 + $44 in total to recover everything as he wants $300 more in profit. set up the equation:
$300 (Profit) + $44 (Initial) = 10 ( # of paintings) x (how much to be sold for
Answer:
x squared plus two times x minus one = zero.
Step-by-step explanation:
(This is a Quadratic equation in the variable x).
