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3 years ago

How many combinations of three books can be selected from 40 books?

Mathematics

1 answer:

earnstyle [38]3 years ago

8 0

Answer:

Step-by-step explanation:

You just count by adding 3 every time

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How do you find GrossProfit

Pavel [41]

It’s probably something that sales or that they are saying that sales because Gross profits = Sales

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2 years ago

Write as a decimal <img src="https://tex.z-dn.net/?f=1%20%5Ctimes%20%5Cfrac%7B5%7D%7B8%7D%20" id="TexFormula1" title="1 \time

Sever21 [200]

Answer

0.625

Explanation

5/8=0.625

1 x 0.625= 0.625

(basically the question was "convert 5/8 to a decimal" because 1 times any number is the same number)

hope this helps!

have a great day :)

5 0

3 years ago

A+2 is less than it equal to 2

Veronika [31]

What is the question

7 0

3 years ago

What does the expression l+w+l+w represent

djverab [1.8K]

That means legthn+lgnth +width+width

that is the perimeter formula for a rectangle or the measure around a rectangle

it can be written as (l-legnth)
perimiter=2l+2w or
p=2l+2w or
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5 0

3 years ago

Read 2 more answers

What is the solution to the following system of equations? 4x + 2y = 18 x − y = 3

Ber [7]

For this case we have the following system of equations:

$4x + 2y = 18\\x-y = 3$

To solve, we clear "x" from the second equation:

$x = 3 + y$

We substitute "x" in the first equation:

$4 (3 + y) + 2y = 18\\12 + 4y + 2y = 18\\12 + 6y = 18$

We clear the value of the variable "y":

$6y = 18-12\\6y = 6\\y = \frac {6} {6}\\y = 1$

We look for the value of the variable "x":

$x = 3 + y\\x = 3 + 1\\x = 4$

Thus, the solution of the system is given by:

$(x, y) :( 4,1)$

Answer:

$(x, y) :( 4,1)$

Option D

4 0

2 years ago