What do you do with mean

Answers

Answer 1

Answer: you add up all the numbers and then divide it by the # of numbers

Answer 2

Answer: When solving mean, you have to add up all numbers and divide the total by the number of sets you have.

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self-service car wash charges $4 for the initial 5 minutes plus an additional $0.75 for each minute after that. Nick only has $10 to spend on washing his car. Let m represent the number of minutes Nick spends washing his car. Create the inequality that symbolizes this situation.

Answers

Answer:

4+0.75(m-5) ≤ 10

Step-by-step explanation:

We start out with 4, since the car wash charges $4 for the first 5 minutes. We add to this the cost based on the minutes over 5 that he used the car wash.

Since m is the number of minutes, we first subtract 5 from this. This is because the first 5 minutes are included in the initial $4. Since each minute past 5 costs $0.75, we multiply m-5 by 0.75:

0.75(m-5)

Together this gives us

4+0.75(m-5)

He only has $10 to spend. This means he must spend less than or equal to $10; this gives us

4+0.75(m-5) ≤ 10

4 + .75m =10 i am not a math expert but i hope this helps

the ratio of boys to girls in the class is 5:7. there are 36 children in the class. how many more girls then boys are there in the class?

Answers

x - the number of boys
y - the number of girls

The ratio of boys to girls is 5:7.
$(x)/(y)=(5)/(7) \n7x=5y \nx=(5)/(7)y$

There are 36 children in the class.
$x+y=36 \nx=36-y \n \nx=x \n(5)/(7)y=36-y \n(5)/(7)y+y=36 \n(5)/(7)+(7)/(7)y=36 \n(12)/(7)y=36 \ny=36 * (7)/(12) \ny=3 * 7 \ny=21 \n \nx=36-y=15 \n \n 21-15=6$

There are 6 more girls than boys in the class.

Ice cream sales and the number of shark attacks have a positive correlation. The conclusion that eating ice cream causes shark attacks is

Answers

This conclusion is not warranted!

It might be true, but not necessarily. A positive correlation can imply causation (such as when the weight of strawberries collected is caused by the number of strawberries picked up by the farmer) but it can also point to another factor which causes both of those phemonena- in our case, it's the summertime which invites people to swim and buy ice cream

Simplify square root of 1.69

Answers

In the given problem, the square root of 1.69 is 1.3.

The square root of a non-negative real number is a value that, when multiplied by itself, results in the original number. In mathematical notation, the square root of the number "x" is represented by the symbol "√x."

The square root is an inverse operation of squaring, which means that if one squares a number and then take its square root, he or she gets back to the original value. The concept of the square root is nearly related to obtaining the side length of a square with a given area or obtaining the magnitude of a vector in mathematics.

1.69 also can be written as $(169)/(100)$ in fraction form.

$\sqrt{(169)/(100)} = \sqrt{(13^2)/(10^2) }$

$= \sqrt{((13)/(10) )^2}\n= (13)/(10) \n= 1.3$

Thus, 1.3 is the square root of 1.69.

Learn more about square roots here:

brainly.com/question/29286039

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the answer to the question is 1.3

The coordinate plane below represents a city. Points A through F are schools in the city.graph of coordinate plane. Point A is at 2, negative 3. Point B is at negative 3, negative 4. Point C is at negative 4, 2. Point D is at 2, 4. Point E is at 3, 1. Point F is at negative 2, 3.

Part A: Using the graph above, create a system of inequalities that only contains points A and E in the overlapping shaded regions. Explain how the lines will be graphed and shaded on the coordinate grid above. (5 points)

Part B: Explain how to verify that the points A and E are solutions to the system of inequalities created in Part A. (3 points)

Part C: William can only attend a school in his designated zone. William's zone is defined by y < −x − 1. Explain how you can identify the schools that William is allowed to attend. (2 points)

Answers

Part A: You want two inequalities such that they overlap. So I'd draw two lines that slant downward at 45° below point C and another parallel line above point F. The shaded area should be between these to lines only.
First, we choose the lines...
y = -x + 2 has C and F above it and all other noted points below it. y = -x + 9 has all the points below it on the graph.
So if we include all points above the first line and all points below the second line, we obtain our intersected shaded area. To do this changes our linear equations to linear inequalities.
All points above y = -x + 2 would then be y > -x + 2
All points below y = -x + 9 would then be y < -x +9
Part B: Verify that these points satisfy the system of inequalities by substituting (x, y) for both points into both inequalities. [Pick any random point outside this shaded area to prove that it coordinates do not satisfy the system.]
Graph the line y = -2x + 2. That will be a line that has a y-intercept of 2 and a slope of -2. Then shade *below* that line (we shade below because it is y < ...). The schools that will be in the shaded region are B, A, and D.
Hope this helps-Maranda

15% of the school parking spaces are handicap spaces. The school has 18 handicap spaces. How many parking spaces are there?

Answers

There are 120 parking spaces. because if you divide each by 3 then 15% percent becomes 5% and 18 handicapp spaces becomes 6 parking lot spances. Since we know that there is 100% in total percentage we multiply 6 with 20 in order to get 120

number of parking = 18 * 100 / 15 = 120

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