The mean of 4 numbers is 19. What would the new mean be if the number 30 is added to the data set?
A.
49
B.
21.2
C.
26.5
D.
17.2

Answer:

n=36

Step-by-step explanation:

36 divided by 2 is 16 then subtract 10 and you will get 6 hope this helps

Answer:

[tex]n = 32[/tex]

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and equals:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction.

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First, add 10 to both sides of the equation:

[tex]\frac{n}{2} - 10 = 6\\\ \\\frac{n}{2}- 10 (+10) = 6 (+10)\\ \\\frac{n}{2} = 6 + 10\\\\\frac{n}{2} = 16[/tex]

Next, isolate the variable n by multiply 2 to both sides of the equation:

[tex]\frac{n}{2} = 16[/tex]

[tex]\frac{n}{2} *2 = 16 * 2[/tex]

[tex]n = 16 * 2\\n = 32[/tex]

[tex]n = 32[/tex] is your answer.

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Answer:

2.1 kilometers/1 day.

Step-by-step explanation:

9 kilometers ÷ 30/7 days, which is the same as (9 x 7)/30 which is = 63/30 = 2.1 kilometers/1 day.

Answer:

2.1 km a day

Step-by-step explanation:

9 km ÷ 30/7 days, in other words (9 x 7)/30 which equals 63/30 which is 2.1 kilometers/1 day.

Answer:

any point where x=3, 4, or 6.

Step-by-step explanation:

The thing that makes a function a function and not a relation is having only 1 y value per x value, which means if you draw a vertical line through a point, it should not intercept any other points. Basically, the main difference between a function and a relation is that a function can't have 2 points on top of each other.

Pick a point where x=3, 4, or 6. Those are the open spots on the grid with nothing above or below them. It doesn't matter which point you pick, as long as there is NOTHING directly above or below that point.

I hope you understood this solution. Happy mathing!

Answer:

40 miles

Step-by-step explanation:

First, change the 15 minutes to 0.25 hours and 3 minutes to 0.05 because we are working with mph.

let x be the normal driving time to work in hours so 40x is the driving to work

since we know distance = speed multiplied by time we do

50(x-0.25+0.05)=40x

50(x-0.2)=40x

50x-10=40x

50x-40x=10

10x=10

x=1 hour normal time to work

therefore

40(1) = 40 mi to work

Confirm this by finding the dist when he went 50 mph for 48 min (0.8hrs)

50(1-.25+0.05) = 50(.8) = 40 mi also

Answer:

Simplifying the expression, the answer would be [tex]81u^1^2v^8[/tex].

Process:

Basically, you just need to multiply the power on the outside with the powers on the inside of the parenthesis. Then, for the base take -3 to the fourth power which will lead you to your final answer [tex]81u^1^2v^8[/tex].

Answer:

Answer 10

Step-by-step explanation:

Answer: y = 16x   or  C = 16×f  

The number of cookies is 16 for each cup of flour used

Step-by-step explanation:

You can take numbers from the graph. For example, Number of Cookies: 192 and the Cups of flour: 12.  Divide the number of cookies by the amount of flour

192÷12 = 16

Check other numbers to be sure  96÷6 = 16

288÷18 = 16

You could fill in the chart by multiplying Cups of Flour by 16 to find the number of Cookies

C = 16 × f

C = 16 × 3

C = 48

Answer:

if they only have times to do 70 then 70/95 finding how many is left is 95-70=15

Step-by-step explanation:

Answer:

murch

Step-by-step explanation:

Answer:

1/4

Step-by-step example:

There are 12 months in a year, by dividing 12 by three we get four. 3 months is 1 fourth of a year.

Answers

The diagram is shown below what happens when you dilate with a scale factor 2/3, and the center of dilation is D.

Line A'B' has the same slope of AB, so the lines are parallel.

Line AD and line A'D' are the same line, since D = D'. Recall that the center of dilation does not move when applying a dilation. Point A moves to A', which is one line AD. Due to D being at the center, all lines from the center will connect the four points shown.

Answer:

3 hours

Step-by-step explanation:

Answer:

1 hour and 20 minutes

Step-by-step explanation:

At 2 hours Heather would be at 60 miles and Cody would just start so it would take him and hour to get to 50 miles and 20 more minutes to get to where Heather was.

Answer:

1400

Step-by-step explanation:

Answer:

280.19 ft³

Step-by-step explanation:

1. put value of "pie".

2.put value of r.

3. 4³=64

4. multiply all the upper number=5632

5. multiply denominator/ LCM= 21

6. 5632÷21= 268.19 ft³

Place a point on the 2 on the y-axis. Place another point on 1.3 on the x-axis. Then draw a straight line through the points from top left to bottom right.

Answer:

The attached images

Step-by-step explanation:

Im smart  

Answer:

Step-by-step explanation:

Answer:

Circle: 18.85

Square: 9.6

The circle has a greater perimeter.

Step-by-step explanation:

The formula to calculating the circle is C=2π r

To calculate the square, just multiply 9.6x4, since a square has 4 sides.

please give brainliest

Answer:

800

Step-by-step explanation:

Convert 0.5 liters to millimeters (0.5×1000) to get 500 ml.

Convert 0.3 liters to millimeters (0.3×1000) to get 300 ml.

Add the 2 up and you get 800 ml.

Answer: the answer would be B.

Step-by-step explanation:

7 1/4 + x = 18

x = 3/4

3/4 + 17 1/4 = 18

hope this helps. :)

Answer:

a 126 divided by 9=14 buttons

b 126 divided by 14=9 buttons

c 230/2=115 so 115 grams of each

115/9=12.7777777778

115/9=8.21428571429

so umm i guess round

13 of a

8 of b

Hope This Helps!!!

Answer:

Please mark Branilyest

Step-by-step explanation:

A is false

B is true

C is true

D is true

E is false Because  B is under 0 so it is negative, and C would be positive

Answer:

1 inch per 2 hours (it may be 0.5/hour)

Step-by-step explanation:

The graph shows there is 1 inch of snow after 2 hours of snowfall, and 2 inches after 4 hours, so the unit rate is 1 inch per 2 hours or 0.5/hour

Answer:

Ecuador, Colombia, Brazil, Sao Tome & Principe,

Step-by-step explanation:

Answer:

Ecuador, Colombia, Brazil, Sao Tome & Principe

Step-by-step explanation: