Answer: 12.4 cm
Step-by-step explanation:
Since we are given the volums, we can work our way backwards to solve for radius, and then for diameter.





Now that we have r, we multiply it by 2 to get diameter.
2×6.2=12.4
Answer:
102
Step-by-step explanation:
Step 1: ask your calculator. It will tell you ...
0.68 × 150 = 102
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Many calculators will deal with percentages directly. If yours doesn't, you may need to convert the percentage to a decimal fraction. Since "%" means the same thing as "/100", you know that 68% is the same as 68/100, or 0.68 (sixty-eight hundredths).
Using your multiplication skills, you can do this in your head with a simple transformation of the problem:
0.68×150 = 68×1.50 . . . . multiply one factor by 100; divide the other factor by 100
= 68×1 +68×0.50 . . . . . . use the distributive property
= 68 + 68/2 . . . . . . . . . . . recognize multiplying by 0.5 is dividing by 2
= 68 +34 = 70 +32 . . . . . rearrange the addition to simplify, if you like
= 102
You need to subtract the rate of decay from 1.
The equation would be 800(1-0.2)^x = 800(0.80)^x
Ummm i think it’s c i’m sorry if it’s not
Hello! So the original price is $120. It has a discount rate of 20%. You still pay 80% of the price, because 100 - 20 is 80. When we are looking for the sale price after the discount, we always mulitply the original amount by the percent of the price left to pay, after subtracting the discount from 100%. All we have to do is multiply 120 by 80% (0.8). 120 * 0.8 is 96. There. The sale price is $96. The answer is D: $96.