Answer:
21
Step-by-step explanation:
all you have to do is get 70% of 30
70% of 30 is 21
Answer:
it is 240
Step-by-step explanation:
put in equation and solve
2/3t+10=170
t=240
The equation for the area of a circle (as most drums are) is
A= π · r²
so knowing the radius to be 14, plug that in for r and A=196π, or about 615.4 inches squared
First find x: y= -2x+4 so you take that and substitute it into your second equation -x+3(-2x+4)=-9 ---> -7x+12=-9 ---> -7x= 3 ---> x=-3/7
Now you can find y by substituting x: y=-2x+4 ---> y=-2(-3/7) +4 ---> y=
