40 prizes were dolls : divide 64 by 8 and you get 8. then multiply 8 by 5 and get 40
Answer:
three over three is simplified to be the value 1
Step-by-step explanation:
your answer is 1
The formula for of a ball is:
S = 4*r^2*pi
or if we express diameter in it:
S = D^2*pi because D=r/2
S1-S2 = (D1^2 - D2^2)*pi
1 = (100 - D2^2)*3,1415
100-D2^2 = 1/3.1415
D2^2 = 100-1/3.1415
D2 = 9.984cm
which means that Diameter will decrease by rate of:
0.016cm/min
Answer:
A. x=0
Step-by-step explanation:
x+20+10x=20+9x
cancel equal terms
x+10x+9x
add x to 10x
11x=9x
move variable to left
11x-9x=0
subtract 11x to 9x
2x=0
divide Both sides by 2
x=0
Answer:
1.6 ft
Step-by-step explanation:
Each time the wheel does a complete turn, the bike moves forward a distance equal to the wheel's circumference. Since the bike moves 200 ft after 40 rotations, the length of the wheel's circumference is:
C = 200 ft / 40
C = 5 ft
Circumference is π times the diameter. So the diameter of the wheel is:
C = πd
5 ft = πd
d = 1.6 ft