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3 years ago

Meredith has 8 pens and 9 pencils. Brody has 4 pens and 9 pencils.

Mathematics

1 answer:

raketka [301]3 years ago

6 0

Answer:

i think the answer is 94

Step-by-step explanation:

You might be interested in

What two-dimensional figure will result from slicing this rectangular prism parallel to its base?

alina1380 [7]

Answer:

We will obtain a rectangle on slicing this rectangular prism parallel to it's base.

Hence, option 1) is true.

RECTANGLE.

Step-by-step explanation:

On slicing this geometrical figure; which is a rectangular prism parallel to it's base then we will obtain a figure similar to it's base of the same dimensions as it's base.

As the base of the rectangular prism is a rectangle so on slicing this 3-dimensional figure parallel to it's base we will obtain rectangles.

Hence, option 1 is true.

RECTANGLE.

8 0

3 years ago

An ice cube is melting, and the lengths of its sides are decreasing at a rate of 0.8 millimeters per minute At what rate is the

julia-pushkina [17]

Answer:

The rate of decrease is: $43.2mm^3/min$

Step-by-step explanation:

Given

$l = 18mm$

$\frac{dl}{dt} = -0.8mm/min$ ---- We used minus because the rate is decreasing

Required

Rate of decrease when: $l = 18mm$

The volume of the cube is:

$V = l^3$

Differentiate

$\frac{dV}{dl} = 3l^2$

Make dV the subject

$dV = 3l^2 \cdot dl$

Divide both sides by dt

$\frac{dV}{dt} = 3l^2 \cdot \frac{dl}{dt}$

Given that: $l = 18mm$ and $\frac{dl}{dt} = -0.8mm/min$

$\frac{dV}{dt} = 3 * (18mm)^2 * (-0.8mm/min)$

$\frac{dV}{dt} = 3 * 18 *-0.8mm^3/min$

$\frac{dV}{dt} = -43.2mm^3/min$

<em>Hence, the rate of decrease is: 43.2mm^3/min</em>

8 0

3 years ago

1-8 please help<br> Me fast if possible

Anastasy [175]

#1 is y=1 ill give you the others in a min.

5 0

3 years ago

Plz help me .....simplify the ratio of 0,0064kg to 32 grams<br>

Degger [83]

9514 1404 393

Answer:

1/5

Step-by-step explanation:

1 kg = 1000 g so your ratio is ...

$\dfrac{0.0064\text{ kg}}{32\text{ g}}=\dfrac{0.0064\cdot1000\text{ g}}{32\text{ g}}=\dfrac{6.4}{32}=\boxed{\dfrac{1}{5}}$

4 0

3 years ago

A boy scout has 4 meters of rope. He cuts the rope into cords 3/5 m long. How many cords will he make?

bulgar [2K]

Original length of the rope = 4m

Size of each piece = 3/5 m.

No of cords of same size formed will be

$4 \div \frac{3}{5} \\ = 4 \times \frac{5}{3} \\ = \frac{20}{3} \\ = 6 \frac{2}{3}$

$Therefore \: the \: person \: will \: make \: \: 6 \frac{2}{3 \: } cords.$

8 0

4 years ago