Use repeated subtraction to divide 86 divided by 9

1 answer:

3 0

-- Start with 86.

-- Subtract 9 the first time. You have 77 left.

-- Subtract 9 the 2nd time. You have 68 left.

-- Subtract 9 the 3rd time. You have 59 left.

-- Subtract 9 the 4th time. You have 50 left.

-- Subtract 9 the 5th time. You have 41 left.

-- Subtract 9 the 6th time. You have 32 left.

-- Subtract 9 the 7th time. You have 23 left.

-- Subtract 9 the 8th time. You have 14 left.

-- Subtract 9 the 9th time. You only have 5 left, so you can't subtract 9 again.

You subtracted it 9 times, and you have 5 left.

So 86 divided by 9 is (9 with remainder 5) .

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\text{and in 2017, she earned a }3\% \text{ pay increase on her monthly salary.}\\
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\text{now given that in 2017 Elise worked 42 hours per week for 45 weeks.}\\
\text{so the total number of hours she worked in 2017 is}=42\times 45=1890\text{ hours}$

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A cone and a cylinder have the same height and their bases are congruent circles

Anettt [7]

Answer:

$30cm^3$

Step-by-step explanation:

the volume of a cylinder is given by:

$v_{cylinder}=\pi r^2 h$

and the volume of a cone is given by:

$v_{cone}=\frac{\pi r^2 h}{3}$

since both have the same height and radius, we can solve each equation for $r^2h$ (because this quantity is the same in both figures) and then match the expressions we find: