1) 37.5%
2) 41/50
3) 0.8333333333...
4) 4%
5) 1/5
6) 1.52
7) 1/4, 32%, 0.4
8) 0.015, 15%, 1/5
9) 1.62, 15/20, 16.2%
10) 17/20, 0.8, 75%
11) 1.9%, 1/8, 0.14
12) 66%, 2/3, 0.67
Answer:
£20
Step-by-step explanation:
1-1/4=3/4
3/4=15
1
1*15/3/4
15*4/3=20
(3c+s)(100-20)/100=100 multiply both sides by 100
(3c+s)80=10000 divide both sides by 80
3c+s=125 subtract 3c from both sides...
s=125-3c....now let's look at the second situation...
(4c+2s)(100-40)/100=120 multiply both sides by 100
60(4c+2s)=12000 divide both sides by 60
4c+2s=200 divide both sides 2
2c+s=100 subtract 2c from both sides
s=100-2c, and from earlier we saw that s=125-3c, since s=s:
100-2c=125-3c add 3c to both sides
100+c=125 subtract 100 from both sides
c=25, and since s=100-2c
s=50
So cds cost $25.00 and sweatshirts cost $50.00
1.a sphere with a radius of three units
By definition, the volume of a sphere is:

Substituting values we have:

Rewriting we have:
2.a cone with a diameter of twelve units and a height of three units
By definition, the volume of a cone is given by:

Substituting values we have:

Rewriting we have: