P = 3x + 0.5x + 9 - 3.4x - 25
P = 0.1x - 16
answer
<span>0.1x − 16</span>
I'm going to try to do it in shorter time without calculator
cone is used to fill cylinder
conevolume times x=cylindervolume
so
x=cylinderv/conev
cylinderv=hpir^2
conevolume=1/3hpir^2
cylinder:
v=hpir^2
r=10
h=20
v=20*pi*10^2=2000pi
cone=1/3hpir^2
r=5
h=10
v=1/3(10)pi5^2=250pi/3
vcylinder/vcone=2000pi/(250pi/3)=6000pi/250pi=600/25=24
answer is 24 times
(2m46s1<span>1)</span>
Volume = length x width x height, so 5 x 2 x 8. The answer is 80 cubic ft.
Product means the sum of two things i.e. the product of 1 and 2 is 3 <span>(1 + 2 = 3)
So the product of 3x and (3x+1) can be written as:
35 < 3x + 3x + 1
^ Greater than 35 i.e. at least 35
35 < 6x + 1
34 < 6x
34/6 < x
17/3 < x
5.67 (2dp) < x
</span>
8.46...hundredth. 8.5....tenths
