Answer:
x=-3
Step-by-step explanation:
- -2 (-5+8x)+6=40-8x
- 10-16x+6=40-8x
- 16-16x=40-8x
- -16x+8x=40-16
- -8x=24
- x=-3
Answer:
y = 2x + -5
Step-by-step explanation:
If you look at the graph, you can find that the slope is 2/1 which is simply just a slope of 2. The y-intercept can be found x = 0, so plug in 0 for x, solve from there and you get -5 for the y-intercept.
Answer:
28.26ft
Step-by-step explanation:
A=πr^2
π*3^2=28.27433
28.26
Answer: she would pay $1386
Step-by-step explanation:
Let x represent the cost of an adult ticket.
Let y represent the cost of a child ticket.
He spent $882 on all of their tickets; 2 adult tickets and 3 child tickets. This means that
2x + 3y = 882 - - - - - - - - - - 1
Each adult ticket costs twice as much as each child ticket. This means that
x = 2y
Substituting x = 2y into equation 1, it becomes
2 × 2y + 3y = 882
4y + 3y = 882
7y = 882
y = 882/7 = 126
x = 2y = 126 × 2
x = 252
Each adult ticket costs $252 and each child ticket cost $126
If Mrs. Smith bought 4 adult tickets and 3 child tickets, the amount of money that she would have to pay is
252 × 4 + 126 × 3
= $1386
Answer:
y = -x/4 - 3
Step-by-step explanation:
y = -4x - 12 //Change and solve for y
x = -4y - 12 // +12 on both sides
x + 12 = - 4y // Divide -4 on both side
-x/4 -12/4 = y //Simply
y = -x/4 - 3