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Alecsey [184]
3 years ago
8

The number of girls, g, in a room is four more than two times the number of boys, b. Half of the number of girls in the room min

us the number of boys is 2. The equations below represent the situation.
g=4+2b
1/2 g-b=2
Mathematics
1 answer:
-BARSIC- [3]3 years ago
8 0
It is evident that you need to find the solution of the system, if it exists.

Let's work the equations.

The second equation (which corresponds correctly to the second statement) is:

g/2 - b = 2, which you can be transformed in this way:

1) Multiply by 2 => g - 2b = 4

2)  Transpose - 2b => g = 4 + 2b.

Now you can see that this equation is the same than the firs equation, which means that the second statement does not provide any new information.

Mathematically, this is a system with infinite solutions, and you cannot determine the number of boys or girls without more information which provides and independent equation.

Answer: there are infinite solutions to the system.
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The vertex of the graph of f(x) = |x - 3| +6 is located at<br> Done<br> Intro
Igoryamba

Answer:

The vertex of the graph is located at the point (3,6)

Step-by-step explanation:

Here, we want to know where the vertex of the equation if plotted will be

To get this, what we have to do is to equate the expression that we have in the absolute value to zero

After this, we then proceed to solve for the value of x

We have this as;

x -3 = 0

hence;

x = 0 + 3

x = 3

to get the y-value of the vertex, we look at the value at the side of the absolute value

This value is 6 and thus, the y-value of the vertex point is 6

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3 years ago
Some teenagers collected trash for a beach cleanup. The data for the number of pounds of trash collected by each teenager are sh
Mumz [18]

Answer:

4.66

Step-by-step explanation:

We are given the following data

26, 26, 21, 22, 20, 25, 35

Step 1

We find the Mean

Mean = 26+ 26+ 21+ 22+20+25+ 35/7

= 175/7

= 25

Step 2

We find the Standard Deviation

The formula for Standard deviation that we would use is the Population Standard deviation, this is because the data given above is the data of the number of pounds of trash collected by each teenager

= √(x - Mean)²/n

= √(26 - 25)²+( 26 - 25)²+ (21 - 25)²+ (22 - 25)² +(20 - 25)²+(25 - 25)²+ (35 - 25)²/7

= √152/7

= √21.7142857

= 4.65985898

Approximately = 4.66

5 0
3 years ago
Read 2 more answers
To repair a leak a plumber needs a pipe that is within 3/4 of an inch of 32 inches. He
Mrrafil [7]

Express all possible lengths for this scrap as a compound inequality will be L ≤ 24.

<h3>What is inequality?</h3>

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

To repair a leak a plumber needs a pipe that is within 3/4 of an inch of 32 inches.

⇒ 3/4 x 32

⇒ 24

He already has a 48-inch pipe.

Let the variable L represents the length of the extra (scrap) that is removed from the 48-inch pipe will be

Then express all possible lengths for this scrap as a compound inequality will be

L + 24 ≤ 48

       L ≤ 48 - 24

       L ≤ 24

More about the inequality link is given below.

brainly.com/question/19491153

#SPJ1

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valentinak56 [21]

Answer:B 28 cm^2

Step-by-step explanation:

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