What is the mean of the set of numbers? –12, –4, 3, 7, 11

Answers

Answer 1
Answer: To find the mean, we need to add up all of the numbers, and then divide by the number of numbers...

–12, –4, 3, 7, 11 In the data set, there are 5 numbers...

(-12+(-4)+3+7+11)=5/5=1

Answer=1

Answer 2
Answer: Hi there! To find the mean we add up all of the data and then divide by how many numbers there are. In this case we have the numbers of -12, -4, 3, 7, and 11. -12+-4+3+7+11=5. Now, we divide by how many numbers there are. In this case we have 5 numbers of data. 5 divided by 5 equals 1. Therefore, the mean of the set of numbers is 1.

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In a class of 28 sixth graders all but one are 12 years old' Witch two data measurements are the same for the students ages? what are those measurements ? PLEASE PLEASE PLEASE HELP

Answers

I think 12/28 which equals 3/7 yeah hope that helps.

If John invests the $1,000 he receives today at an interest rate of 4.8% compounded monthly, in one year theinvestment will be worth $
When John receives $1,000 a year from now, the $1,000 he invested today will be worth $
$1,000 he receives in the future.
more than the
ools

Answers

Answer:

If John invests the $1,000 he receives today at an interest rate of 4.8% compounded monthly. in one year the investment will be worth $ 1,049

When John receives $1,000 a year from now, the $1,000 he invested today will be worth $49 more than the $1,000 he receives in the future.

Step-by-step explanation:

Just answered the question.

A 120 watt light bulb uses about 0.1 kilowatt of electricity per hour.if electricity costs $0.20 per kilowatt hour how much does it cost to have a bulb on for an hour?

Answers

A 120 watt light bulb uses about 0.1 kilowatt of electricity per hour.if electricity costs $0.20 per kilowatt hour. Let's solve how much does it cost to have a bulb on for an hour. => 120 watt = 0.1 kilowatt per hour which costs 0.20 per kilowatt per => 0.1 kilowatt per hour * 0.20 = 0.02 dollars in an hour.

Answer:

$0.02 is the cost to have the bulb on for an hour

Step-by-step explanation:

A 120 watt light bulb uses about 0.1 kilowatt of electricity per hour

We can assume 1 kilowatt per hour = 1 unit

So total units of electricity consumed in 1 hour = 0.1 × 1

= 0.1 kilowatt hour or 0.1 unit

Since cost of one unit or 1 kilowatt hour is = $0.20 per unit or kilowatt hour.

Therefore, total cost to have this bulb on for an hour = Number of units consumed by the light bulb × per unit cost

= 0.1×0.20

= $0.02

$0.02 is the cost to have the bulb on for an hour.

A bag contains 7 red marbles, 12 orange marbles, 18 yellow marbles, and 5 purple marbles. A marble is drawn at random from the bag. What is the probability that the marble drawn will not be orange?

A. 5/7

B. 1/12

C. 1/30

D. 2/7

Answers

The probability that the marble drawn will not be orange is option(A)  (5)/(7)

What is Probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.

Given,

Number of red marbles = 7 marbles

Number of orange marble =12 marbles

Number of yellow marble = 18 marbles

Number of purple marbles = 5 marbles

Total marbles = 7+12+18+5 = 42 marbles

Total marbles without orange marble = 7+18+5 =30 marbles

Probability = Number of favorable outcome / Number of total outcome

Probability that the marble drawn will not be orange = (30)/(42)=(5)/(7)

Hence, the probability that the marble drawn will not be orange is option(A)  (5)/(7)

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A. 5/7 
YOu would take 7+12+18+5 and get 42 then subtract 12 from that you get 30 so you have 30/42 then simplify
 HOPE THIS HELPED ;D

What is 1/9 of 60 equal

Answers

(1)/(\not9^3) *\not60^(20)=(20)/(3)=6(2)/(3)


1/9 of 60 = 6.666666667
1/9 = 0.111111111111
0.11111111111 x 60 = 6.666666667
Hope that helps!!

Starting at the same point, Tom and Juanita go biking in opposite directions. If Tom rides at a speed of 24 mph, and Juanita rides at a speed of 30 mph, how far apart will they be in 3 hours?

Answers

Final answer:

Tom and Juanita, starting from the same point and biking in opposite directions for 3 hours, will end up 162 miles apart.

Explanation:

Starting from the same point, Tom and Juanita go biking in opposite directions for 3 hours. From what we know, Tom rides at a speed of 24 mph and Juanita rides at a speed of 30 mph.

When an object moves in one direction, its distance travelled is calculated from the formula distance = speed x time. This is because speed is described as the distance travelled per unit time. In this case, Tom travels 24 miles in 1 hour, so in 3 hours, he will cover 24 mph x 3 hours = 72 miles. Juanita will cover 30 mph x 3 hours = 90 miles.

Because they are moving in opposite directions, these distances add together. So in 3 hours, Tom and Juanita will be 72 miles + 90 miles = 162 miles apart.

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