Step-by-step explanation:
EQUATION: Volume=length x width x height.
V=l×w×h
1620cm^3=9cm×9cm×xcm
1620cm^3=81cm^2 ×xcm
xcm= 1620cm^3/81cm^2
xcm= 20cm
Answer:
4
Step-by-step explanation:
When adding fractions, you want to make the denominators of the fraction the same. To do this, we can multiply both the numerator and denominator of 3/4 by 3. When changing either a denominator or numerator in a fraction, you must do the same thing to the numerator as the denominator.
Now we have . To add 9/12 and 5/12, we keep the denominator the same, and add the numerators, getting . This is greater than 1, so we can take 12/12 from 14/12, and make it . If we then add 3, we get , which simplifies to
Answer:
dgdgfgt4e
Step-by-step explanation: