All categories

2 years ago

If your Science class eats 168 slices of pizza in 4 hours, how many slices is that per hour?

Mathematics

2 answers:

Ahat [919]2 years ago

7 0

Answer:

42 slices per hour

Step-by-step explanation:

Misha Larkins [42]2 years ago

7 0

Answer: 42 slices per hour

Step-by-step explanation: 168 divided by 4= 42

Or 42x4= 168

You might be interested in

6. In a toy factory, 200 wooden closed cylinders of diameter 35 mm and height 7 cm have to be painted. What is the total surface

Pachacha [2.7K]

Answer:

6) About 19,244.75 square centimeters.

7) About 4895 containers.

Step-by-step explanation:

Question 6)

We need to paint 200 wooden closed cylinders of diameter 35 mm and height 7 cm. And we want to find the total surface area that needs to be painted.

First, since the diameter is 35 mm, this is equivalent to 3.5 cm.

The radius is half the diameter, so the radius of each cylinder is 1.75 cm.

Recall that the surface area of a cylinder is given by the formula:

$\displaystyle \text{SA}=2\pi r^2+ 2\pi rh$

Where r is the radius and h is the height.

Therefore, the surface area of a single cylinder will be:

$\displasytyle \text{SA}=2(3.142)(1.75)^2+2(3.142)(1.75)(7) = 96.22375\text{ cm}^2$

Then the total surface area for 200 cylinders will be:

$\displaystyle \text{SA}_{\text{total}}=200(96.22375)=19244.75\text{ cm}^2$

Question 7)

We know that the tank has a diameter of 2.4 m and a height of 6.4 m.

Since its diamter is 2.4 m, then its radius is 1.2 m.

Find the total volume of the tank. The volume for a cylinder is given by:

$\displaystyle V=\pi r^2h$

Since r = 1.2 and h = 6.4:

$\displaystyle V=(3.142)(1.2)^2(6.4)=28.956672\text{ m}^3$

Each container has a base radius of 8.2 cm and a height of 28 cm.

So, the radius of each container is 0.082 m and the height is 0.28 m.

Then the volume of each container is:

$\displaystyle V=(3.142)(0.082)^2(0.28)=0.005915506\text{ m}^3$

Then to find the number of containers that can be filled by the tank, we can divide the two values. Hence:

$\displaystyle C=\frac{28.956672}{0.005915506}=4895.045466\approx 4895$

Thus, approximately 4895 containers can be filled.

5 0

3 years ago

Read 2 more answers

What is n+31.53=62.4

tigry1 [53]

It would be

N = 30.87

6 0

3 years ago

Read 2 more answers

Help asap plzzzzzzzzzz

serg [7]

Based on what I know it’s B because the others have exponents and linear functions don’t have exponents

8 0

3 years ago

Consider the graph of quadrilateral WXYZ. What is the most specific name for quadrilateral WXYZ?

xz_007 [3.2K]

Answer:

The quadrilateral shown on the graph is most likely to be a square.

Choice A

Step-by-step explanation:

All the sides appear to be equal which is a characteristic of squares.

Secondly, the sides appear to be intersecting at right angles

Finally, the sides appear to be parallel to each other.

4 0

3 years ago

Read 2 more answers

In the equation y = 39x + 50represents the number of people at a holiday dinner and y represents the total cost of

kkurt [141]

Answer:

The correct answer is - 12.

Step-by-step explanation:

Given:

Total number of people = y = 39x+50

Total amount spent y = 518

Solution:

The equation for the number of people who attended the dinner

y = 39x+50

The cost of dinner is equally divided by number of people =

then, 518 = y

placing value, 518 = 39x+50

x = (518-50)/39

= 468/39

= 12

Then number of people attended the dinner = 12

6 0

3 years ago