Ask question

Ask question

All categories

3 years ago

15

A new school is ordering math text books. They are 3/4 of an inch thick. How many these books will fit into a book shelf that is

2 feet long.

2 answers:

soldi70 [24.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

irina1246 [14]3 years ago

4 0

Answer:

32

Step-by-step explanation:

24 inches are 2 feet

3/4 x 32 = 24

24 inches = 2 feet

You might be interested in

Find the Circumference of a circle with a Diameter of 9 inches Group of answer choices 9 pi inches 9 pi inches^2 9 pi inches^3 1

katen-ka-za [31]

Answer: $9\pi\ in.$

Step-by-step explanation:

Given

The diameter of a circle is $d=9\ in.$

So, the radius is $r=\frac{d}{2}=4.5\ in.$

The circumference is given by $2\pi r$

Insert the values

$\Rightarrow 2\pi \cdot 4.5\\\Rightarrow 9\pi \ in.$

Thus, the circumference of the circle is $9\pi\ in.$

8 0

3 years ago

Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

<u>Volume of a cylinder</u>

$\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

r = 1.5 cm
h = 0.25 cm

Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

$\sf \implies V=0.5625 \pi \:cm^3$

Find the density of the coin given it has a measured mass of 18.54 g

<u>Density formula</u>

$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
V = volume

Given:

m = 18.54 g
$\sf V=0.5625 \pi \:cm^3$

Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

4 0

2 years ago

Solve for x in this circle.

Katen [24]

Answer:

Step-by-step explanation:

7*(7 + x+1) = 6*(x + 5 + 6) {Intersecting secant theorem}

7 *(x + 8) = 6*(x + 11)

Distributive property,

7x + 56 = 6x + 66

Subtract 56 from both sides

7x = 6x + 66 - 56

7x = 6x + 10

Subtract 6x from both sides

7x - 6x = 10

x = 10

8 0

3 years ago

Whatttttt doesssss x equallllllll?

PilotLPTM [1.2K]

Answer: cos30

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Rachel can read 13 pages of a book in 4/5 of an hour. How many pages can she read in 4 hours?

garik1379 [7]

Answer:

my answer is 17 5/5

Step-by-step explanation: so what i did was that i add 13 and 4/5 but i can't add like that so i put 13/1 + 4/5 and they don't have the same denominator so i did 1 x 5 so if i do it on the bottom i have to do it on the top and so i did 13 x 5 and 13 x 5 is 65 and 1 x 5 is 5 and so my new fractions are 65/5 + 4/5 and i add both them and got 69/5 so i divided 69 and 5 and got 13 4/5 and then i add 69/5 plus 4 and turn the 4 into 4/1 and multiply 1 x 5 and have to do it on the top so 4 x 5 and got 20/5 and now add 69/5 + 20/5 and got 89/5 as my answer and divided 89 divided by 5 and got 17 5/5 and know it that is my answer.

hope it helps you!

4 0

3 years ago