let's make p stand for popcorn and d for drinks. Using those variables, we can create our equations:
2p + 3d = 18.25
4p + 2d = 27.50
From this, we can use substitution or elimination to solve:
For substitution, in the second equations, we could factor out a 2, divide both sides by 2, and then move the left over 2p to the other side to isolate d to put into the first equation.
For elimination, we can multiply the first equation by -2 so that we can remove the 4p and focus on solving for d.
I'll be using elimination in this case:
-2(2p + 3d = 18.25) --> -4p - 6d = -36.50
-4p - 6d = -36.50
4p + 2d = 27.50
-4d = -9.00
d = 2.25
4p + 2 * 2.25 = 27.50
4p + 4.50 = 27.50
4p = 23.00
p = 5.75
Now let's check our answer:
2 * 5.75 + 3 * 2.25 = 18.25
11.50 + 6.75 = 18.25
18.25 = 18.25
So drinks cost $2.25 and popcorn $5.75
Answer:
I know for sure that it is 1.5, -1.5
Answer:
5/17
Step-by-step explanation:
If we do the multiplication first, we get:
If we do the division next, we get:
Answer:
2 pens for $0.90 is better
Step-by-step explanation:
Answer: $595
Step-by-step explanation:
First find the number of items he sold.
Digital Cameras:
= Amount received from selling digital cameras / Cost of cameras
= 700 / 175
= 4 cameras
Laptops:
= 2,394 / 399
= 6 laptops
Vacuum cleaners:
= 833 / 119
= 7
Total number of items sold:
= 4 + 6 + 7
= 17 items
He earns $35 on each sale so the total commission is:
= 35 * 17
= $595
