What is the average weight of the kittens in the shelter?

1 answer:

8 0

You should add the weights of each kitten and then divide by the number of kittens. Ex. There are 5 kittens weighing 2, 1, 3, 2, and 2. So you would add those to get 10 and divide by the number of kittens which is 5 to get an average of 2.

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The level of a lake was 8 inches below normal. It decreased 1 1/4 inches in June and 2 3/8 inches more in July. What was the new

marshall27 [118]

It would be: 8 - (1 1/4 + 2 3/8)

8 - (5/4 + 19/8)

8-29/8

64-29/8

35/8 inches OR 4.375 is your answer

8 0

3 years ago

Read 2 more answers

Metal Fabrication If an open box is made from a tin sheet 10 in. square by cutting out identical squares from each corner and be

MrRa [10]

Answer:

ength (l) : (10-2*5/3) = 20/3
width(w): (10 - 2*5/3) = 20/3
height(h): 5/3

Step-by-step explanation:

Let x is the side of identical squares

By cutting out identical squares from each corner and bending up the resulting flaps, the dimension are:

length (l) : (10-2x)
width(w): (10-2x)
height(h): x

The volume will be:

V = (10-2x) (10-2x) x

<=> V = (10x-2 $x^{2}$ ) (10-2x)

<=> V = 100x -20 $x^{2}$ - 20 $x^{2}$ + 4 $x^{3}$

<=> V = 4 $x^{3}$ - 40 $x^{2}$ + 100x

To determine the dimensions of the largest box that can be made, we need to use the derivative and and set it to zero for the maximum volume

dV/dx = 12 $x^{2}$ -80x + 100

<=> 12 $x^{2}$ -80x + 100 =0

<=> x = 5 or x= 5/3

You know 'x' cannot be 5 , because if we cut 5 inch squares out of the original square, the length and the width will be 0. So we take x = 5/3

length (l) : (10-2*5/3) = 20/3
width(w): (10 - 2*5/3) = 20/3
height(h): 5/3

6 0

3 years ago

A construction company is moving large rocks. It takes 3/4 hour to move 12 rocks. The construction company has already moved 60

Luden [163]

First divide the rocks per 3/4 of an hour by 3 and multiply by 4 to get the production per hour. then subtract the already moved rocks from the total job and divide the answer by 16 (the rocks moved per hour) getting the time needed to move the rest