W=4x+9y
-9y=-w+4x
9y=w-4x
y=(w-4x)/9
Hope this helps :)
Answer:
Step-by-step explanation:
cosФ=0 then the angle=π/2=90 degrees
sinФ==1 sin 90=1
12) the original price of the console that Amanda bought :
240+(240*50%)=360 dollars
the price before the tariffs:
360-(360*50^)=180 dollars
Answer:
20 minutes
Step-by-step explanation:
hope it helps u
plzz plzz plzz mark as brainliest
H + m = 480
h = 2m
2m + m = 480
3m = 480
m = 480/3
m = 160 <=== there were 160 math books
h = 2m
h = 2(160)
h = 320 <=== there were 320 history books
