Answer:
Population in 1950 was 4,100,000
Step-by-step explanation:
Equation: 5x + 2,000,000 = 22,500,000
Subtract 2,000,000 from each side: 5x = 20,500,000
Divide each side by 5: x = 4,100,000
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The answer is 24 i believe
The formula to find the volume)The volume of cylinder will be = V\pi r^2 h
V = 1/3times3.14times5times5times10=261.67 cubic cm.
Now, the number of cones needed to fill the cylinder will be = 6280/261.67=23.999 = 24
Another way to figure
this out is n×1/3×5×5×10=10×10×20
n=2000×3÷250
n=24
t = 7
5(2t - 3) – 7.5t = 0.5(12 – t)
5*2t - 3*5 - 7.5t = 12*0.5 - t *0.5
10t - 15 - 7.5t = 6 - 0.5t {Now, combine like terms}
10t - 7.5t - 15 = 6 - 0.5t
2.5t -15 = 6 - 0.5t {Add 15 to both sides}
2.5t = 6 - 0.5t + 15
2.5t = 21 - 0.5t { Add 0.5t to both sides}
2.5t + 0.5t = 21
3t = 21 {Divide both sides by 3}
t = 21/3