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Ierofanga [76]
3 years ago
6

The formula for finding the area of a square that has a side length, s, is A = s2. If a square has an area of 40 square units, w

hat is the length of a side?
Mathematics
2 answers:
REY [17]3 years ago
7 0

Answer:

The side length of square is 2\sqrt{10} units.

Step-by-step explanation:

Given : The formula for finding the area of a square that has side length s is given as A=s^2

Also, given the area of a square is 40 square units.

We have to find the length of the side of square.

Consider the given formula,

A=s^2

We are given area s 40 square units

So, 40=s^2

Taking square root both sides, we have,

\sqrt{40}=s  

Simplify, we have,

s=2\sqrt{10} units.

Thus, The side length of square is 2\sqrt{10} units.

lesya [120]3 years ago
5 0
The length of side can be calculated as 
<span>s = √40
   = √4x10
   = 2√10</span>
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Members of the student concil are conducting a fundraiser by selling school calendars. After selling 80 calendars, they had a lo
Oksana_A [137]

Answer:

a)  y=8x-1000

b) profit=\$8

c) They'd have lost $1000 if they had sold no calendars.

Step-by-step explanation:

a) The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

In this case we know that "y" represents the profit of loss and "x" the number of calendars sold.

Then, according to the exercise, the line passes through these two points:

(80,-360) and (200,600)

Then, we can find the slope of the line with the formula m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-360-600}{80-200}=8

Now, we can substitute the slope and one of those points into y=mx+b and solve for "b":

600=8(200)+b\\\\b=-1000

Then, subtituting values, we get that the equation that describes the relation between the profit of loss and the number of calendars sold, is:

y=8x-1000

b) The slope of the line is the profit they made from selling each calendar

profit=8

c) The y-intercept is the amount they would have lost if they had sold no calendars:

b=-1000

They'd have lost $1000 if they had sold no calendars.

6 0
2 years ago
:
Degger [83]

Let x = pounds of $12 per pound coffee

then

20-x = pounds of $9 per pound coffee

.

12x + 9(20-x) = 10(20)

12x + 180 - 9x = 200

3x + 180 = 200

3x = 20

x = 20/3

x = 6 and 2/3 pounds of $12 per pound coffee

.

Amount of $9 per pound coffee:

20-x = 20-20/3 = 60/3 - 20/3 = 40/3

or

13 and 1/3 pounds of $9 per pound coffee

3 0
2 years ago
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beks73 [17]

Answer:

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