Answer:
$3.00
Step-by-step explanation:
Let p = the cost of a pack of pencils
and b = the cost of a binder
Then we have two simultaneous equations.
(1) 2p + 3b = 21.00
(2) 5p + 2b = 25.00
1. Multiply each equation by numbers to give one of the variables the same coefficient.
Multiply (1) by 2 and (2) by 3.This gives
(3) 4p + 6b = 42.00
(4) 15p + 6b = 75.00
2. Subtract (3) from (4)
This gives
(5) 11p = 33.00
3. Solve equation (5) for p
Divide each side by 11
p = 3.00
Each pack of pencils costs $3.00.
Answer:
Option c
Step-by-step explanation:
Answer:
(-1,-4)
Step-by-step explanation:
Because it is a rotation that turns both the x and y values the two swap places. The x value become negative because before it was in quadrant 4 where there was still a positive chance but rotating the point clockwise puts it into the third quadrant where there are only negatives.
Answer:
1.50x=18
Step-by-step explanation:
you need to figure out how many you can buy, so we will put x in there and it will all equal 18, therefore heres that equal sign. so yeh.
