Ask question

Ask question

All categories

4 years ago

5

ryan has four notebooks and a pencil case in his bag. The Total mass is eleven pounds.The pencil case weighs 1/2 pound and each

of the notebook has the same mass.

1 answer:

Ainat [17]4 years ago

8 0

Subtracting .5 pounds from 11 leads you with 10.5 divide that by 4 to get the weight of each notebook, 2.625

You might be interested in

All points along a parallel are the same distance from the equator.

Sindrei [870]

The <em><u>correct answer</u></em> is:

A) True

Explanation:

A parallel is an imaginary line that runs parallel to the equator and goes completely around the globe.

Since it is parallel to the equator, it will be the same distance from the equator at every point along the parallel.

5 0

3 years ago

Read 2 more answers

Calculating area of rectangle

PSYCHO15rus [73]

Answer:

$Area = 216.108cm^2$ --- You

$Area = 216.940cm^2$ --- Another student

Reason: Because there is a variation in the given dimensions

Step-by-step explanation:

Given

Your measurement

$Length = 20.70cm; Width =10.44cm$

Another students'

$Length = 20.74cm; Width =10.46cm$

Solving (a): The area

Area is calculated as:

$Area = Length * Width$

For you

$Area = 20.70cm * 10.44cm$

$Area = 216.108cm^2$

For the other student

$Area = 20.74cm * 10.46cm$

$Area = 216.940cm^2$

Solving (b): Reason for the variation in the areas

The given measurements are estimates of the dimensions of the rectangle.

Since there is a variation in the estimates, there will be some level of variation in the calculated area.

4 0

3 years ago

The third graders at Grace Hardeman Elementary want to play kickball. There are 20 students, and each team will have 5 students.

Julli [10]

Answer:

D

Step-by-step explanation:

If there are 20 students, and each team has 5 students, then there will be 4 teams of third graders that will play kickball.

20/5 = 4

5 0

3 years ago

McKenna is volunteering in the media center at school. She has 125 books that need to go on the shelves. Each shelf holds 25 boo

Alecsey [184]

Easy.....125÷25=5 this is because if each shelf holds 25 books and there's 125 the most reasonable thing to do is to divide

5 0

4 years ago

Read 2 more answers

40 POINTS AVAILABLE

vazorg [7]

Answer:

The area of the shaded region is $(486\pi-648)\ units^{2}$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the larger circle minus the area of the square plus the area of the smaller circle

Step 1

<em>Find the area of the larger circle</em>

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=AB=18\ units$

substitute in the formula

$A=\pi (18)^{2}=324\pi\ units^{2}$

step 2

<em>Find the length of each side of square BCDE</em>

we have that

$AB=18\ units$

The diagonal DB is equal to

$DB=(2)18=36\ units$

Let

x------> the length side of the square BCDE

Applying the Pythagoras Theorem

$36^{2}=x^{2} +x^{2}\\ 1,296=2x^{2}\\ 648=x^{2}\\ x=\sqrt{648}\ units$

step 3

<em>Find the area of the square BCDE</em>

The area of the square is

$A=(\sqrt{648})^{2}=648\ units^{2}$

step 4

<em>Find the area of the smaller circle</em>

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=(\sqrt{648})/2\ units$

substitute in the formula

$A=\pi ((\sqrt{648})/2)^{2}=162\pi\ units^{2}$

step 5

Find the area of the shaded region

$324\pi\ units^{2}-648\ units^{2}+162\pi\ units^{2}=(486\pi-648)\ units^{2}$

7 0

3 years ago