Answer:
x=-72
Step-by-step explanation:
-x/6-1=-13
add 1 to both sides
-x/6=-12
multiply 6*-12
-72
x=-72 because -72/6=-12
R=3
Vcyl.=36(9π)=324π
Vcone=4(9π)=36π
V pencil=324π+36π=360π
Say b, initial price, + 20,000.
y, price after x years = m years + 20,000.
m would be negative because the price would decline after x years.
Answer:
156
Step-by-step explanation:
Let number of juniors be j and number of seniors be s
Thus, we can write:
<u> 236 juniors and seniors in Mr. Jay's math class:</u>
j + s = 236
Also
<u>There are 4 fewer juniors than twice the number of seniors:</u>
j = 2s - 4
Now putting equation 2 into 1, we can solve for s:
j + s = 236
2s - 4 + s = 236
3s = 240
s = 80
Hence, juniors is:
j = 2s - 4
j = 2(80) - 4
j = 156
There are 156 juniors
