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4 years ago

9

Adam has 3 meters of fabric. He plans to cut the fabric into pieces that are ¼ meter long. How many pieces of fabric will Adam h

ave? Write a division equation and solve.

1 answer:

pickupchik [31]4 years ago

4 0

Answer:

12 pieces of fabric

Step-by-step explanation:

3 / 0.25 = 12

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4 years ago

Frank’s bookshelf is 1 1/2 meters high. Each row in the bookshelf is 3/16 of a meter high. How many rows are there in Frank’s bo

Mariana [72]

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Step-by-step explanation:

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3 years ago

The population of a city is currently 45,000 and is declining at a rate of 2% each year. Give a formula for determining the tota

Julli [10]

Answer:

Step-by-step explanation:

The general form of this equation is

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3 years ago

(1 pt) A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.4 cm/min. At what rate is the

mrs_skeptik [129]

Answer:

Rate at which volume of the snowball decreasing = 90.48 cm³/min

Step-by-step explanation:

$\texttt{Volume of sphere, V =}\frac{4}{3}\pi r^3=\frac{4}{3}\pi \left (\frac{D}{2} \right )^3=\frac{1}{6}\pi D^3$

Differentiating with respect to time,

$\frac{dV}{dt}=\frac{d}{dt}\left (\frac{1}{6}\pi D^3 \right )=\frac{1}{6}\pi \times 3D^2\frac{dD}{dt}\\\\\frac{dV}{dt}=\frac{1}{2}\pi D^2\frac{dD}{dt}$

Substituting

D = 12 cm and rate of change of diameter = 0.4 cm/min.

$\frac{dV}{dt}=\frac{1}{2}\pi D^2\frac{dD}{dt}\\\\\frac{dV}{dt}=\frac{1}{2}\pi \times 12^2\times 0.4=90.48cm^3/min$

Rate at which volume of the snowball decreasing = 90.48 cm³/min

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3 years ago

Riley called for pizza delivery. She was told the cost is $5 per pizza plus a $6 delivery charge. Fill in the blanks to create a

Nimfa-mama [501]

Answer:

subtract the delivery fee from the 20 dollars. $20 - $6 = $14. 2. Find the number of pizzas with the $14 that she can use. $14 ÷ $5 = 2 R $4.

Step-by-step explanation:

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2 years ago