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2 years ago

DeAnna has 80 books in her collection If 60% of the books of fiction how many of the books or nonfiction

Mathematics

1 answer:

tatuchka [14]2 years ago

6 0

Answer: 48 books

Step-by-step explanation: Start by converting 60% to a decimal/fraction (60/100). From there, you can multiply it by the total (80) to get the answer.

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How many different committees can be formed from 12 teachers Abs 43 students of the committee consists of 4 teachers and 3 stude

Marina86 [1]

Answer:

6108795

Step-by-step explanation:

To obtain the number of ways the committee can be selected :

4 teachers from the 12 teachers available and 3 students from the 43 students available

Using combinatorics :

12C4 * 43C3

recall :

nCr = n! ÷ (n - r)!r!

Using calculator :

12C4 = 495

43C3 = 12341

12C4 * 43C3

495 * 12341

= 6108795

3 0

2 years ago

Determine the volume of the figure. Use 3.14 for π. Round your answer to the nearest tenth. Show all of your work.

Ostrovityanka [42]

Answer:

1985 cubic units (written as un. with the cubed exponent)

Step-by-step explanation:

First, you find the volume of the cylinder

Here's the formula:

$V=\pi r^{2}h\\V=volume\\r=radius\\h=height$

Now, you plug in and solve.

$V=(3.14)(7.2^{2})(7.4)\\V=(3.14)(51.84)(7.4)\\V=(162.7776)(7.4)\\V=1204.55424\\rounded:\\V=1204.6$

Then, you find the volume of the dome.

Here's the formula:

$volume/of/a/sphere=\frac{4}{3}\pi r^{3}\\volume/of/a/dome:\\V=\frac{2}{3}\pi r^{3} \\V=volume\\r=radius$

Now, you just plug in and solve.

$V=(\frac{2}{3})(\pi)(r^{3})\\V=(\frac{2}{3})(3.14)(7.2^{3})\\V=(\frac{2}{3})(3.14)(373.248)\\V=(2.093)(373.248)\\V=781.208064\\rounded:\\V=781.2$

Finally, you add them together, and there's your answer!

$1204.6+781.2=1985.8$

Hope this helped!

<em>brainliest?</em>

8 0

2 years ago

A stack of paper is 8 1/2 in. long by 11 in. wide by 4 in. high. What is the volume of the stack of paper?

Fynjy0 [20]

Answer:

0.0603m2

Step-by-step explanation:

and there u go

7 0

3 years ago

If f(x) = −3x + 4 and g(x) = 2, solve for the value of x for which f(x) = g(x) is true.

Serjik [45]

F(x) = -3x + 4
g(x) = 2

To get f(x) = g(x)
-3x + 4 = 2
-3x = 2-4
-3x = -2
x = (-2/-3)
x = 2/3

4 0

2 years ago

Read 2 more answers

Steven rode a bike for 132.8 miles while training for a marathon. He biked 8.3 miles each day. How many days did he train for th

MA_775_DIABLO [31]

8.3x=132.8
Divide 132.8 into 8.3 groups

8 0

3 years ago

Read 2 more answers