MATHEMATICS MIDDLE SCHOOL

A student is selecting 5 different geography books, 4 different chemistry books, and one of 7 different science books. In how many different ways can a student select them?

Answers

Answer 1
Answer:

There would be 5184 ways in which each subject books can be selected.

Explanation:

Number of geography books = 5

Number of chemistry books = 4

Number of Science books = 7

Different ways of selecting geography books = 5!

                                                                            = 5 X 4 X 3 X 2 X 1

                                                                            = 120

Different ways of selecting chemistry books = 4!

                                                                          = 4 X 3 X 2 X 1

                                                                          = 24

Different ways of selecting Science books = 7!

                                                                       = 7 X 6 X 5 X 4 X 3 X 2 X 1

                                                                       = 5040

Total different possible ways they can select them = 120 + 24 + 5040

                                                                                     = 5184

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The length of a rectangle is 2 inches more than twice its width.Write an equation relating the length/of the rectangle to its width w.

Answers

the equation would be: L= 2w + 2

What is equation?

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.

here, we have,

The length of a rectangle is 2 inches more than twice its width.

Let, width = w & length = L

now,

Since the length is 2 inches more than twice the width, the equation would be:

L= 2w + 2

Hence, the equation would be: L= 2w + 2

To learn more on equation click:

brainly.com/question/24169758

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Since the length is 2 inches more than twice the width, the equation would be:
L= 2w + 2

sebuah taman berbentuk persegi panjang dengan keliling (2x+24)m dan lebar (8-x)m. agar luas taman maksimum, panjang taman tersebut adalah....m

Answers

2(8-x) = 16-2x (because there are 2 width lengths in the whole perimeter (circumference).
2x+24 - 16-2x =8 (the x's cancel each other out)
8/2 = 4 (because the length is in 2 parts so they are each 4)
The length of the garden is 4m
Hope this helps :) 

Please Help! i am on the last stretch for a test, and i seriously need help with this question. i know its lame, but i really am stuck ;-;

Answers

I believe that it's A neither, because I don't think that it could be displayed on a coordinate graph when it has an exponent in it. So I think it's A. Let me know if I'm correct. ;-)

Answer:

A

Step-by-step explanation:

Paula can make 14 beaded bracelets in an hour.Tina can make 13 bracelets in an hour.In one week,Paula made bracelets for 6 hours and Tina made bracelets for 8 hours.Who made more bracelets that week?Explain.

Answers

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B. –3.7
C. 3.7
D. 9.1
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Answers

The answer you are looking for is D.) 9.1

Which expression is eqivalent to 6× + 10×

Answers

16x

Both of these expressions are similar expressions, therefore you can simply add the number in front of the 'x'

6 + 10 = 16

Therefore, 6x + 10x = 16x
since they're like terms...simply just add them;
6x + 10x = 16x
So your final answer is: 16x 
Hoope that helps :D
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