W represents the weight of each book
2w + 4 = 18
2w = 18 - 4
2w = 14
w = 14/2
w = 7 oz <===
Answer:
(0,-8)
Step-by-step explanation:
90° rotation (x,y) > (-y,x)
180° rotation (x,y) > (-x,-y)
270° rotation (x,y) > (y,-x)
2x-4y=8
2x=4y+8
x=2y+4
^^^^^^^
Answer:
30 seconds
Step-by-step explanation:
Find the total distance needed to be traveled. 520-250 = 270
Find combined rate. 4+5=9
Divide distance needed to be traveled by combine rate to get answer.
270/9 = 30.
