The rabbit population in a certain area is 200% of last year's population.There are 1,000 rabbits this year.how many were there last year?

Answers

Answer 1
Answer:

the answer is 200%x=1000 which is =500 when you divide 1000 by 2.  So 500 rabbits last year


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Un muchacho compra el mismo numero de lapices que de lapiceros por 90 soles.Cada laliz le cuesta 3 soles y cada lapicero 7 soles. ¿Cuantos lapices y lapiceros ha comprado?

Answers

Answer:

pencils amount = 9   pens amount= 9

Step-by-step explanation:

We start this problem forming two linear equations system.

3*X+7*Y=90

Where X is the amount of pencils and Y is the amount of pens

The second equation is given by the statement, the amount of pencils is equal to the amount of pens, so the second equation is:

X=Y

Merging both equations we have:

3*X+7*X=90

Solving for X we have:

10*X=90

X=9

X=Y=9

How many times as much as 0.2 is 0.02?

Answers

When you multiply by 10 you move the decimal point 1 place to the left.

(0.2 would become 2.0, and 0.02 would become 0.2.)

0.2 is 10 times as much as 0.02.

NO! 0.2 is the same as 0.20 since you can add trailing zeroes to a number after a decimal) 0.20 is not the same as 0.02 I think

What are all of the powers of 3 between 3 and 1,000?

Answers

All the powers of 3 between 3 and 1000:

3^1 = 3
3^2 = 9
3^3 = 27
3^4 = 81
3^5 = 243
3^6 = 729

3^7 = 2187 - it doesn't fulfill the given conditions so we can ignore it

For Each Data Set, Determine the median, the first and third Quartiles, and the interquartile Range.1. Texts per day: 24, 53, 38, 12, 31, 19, 26
2. Daily Attendance at the water park: 346, 250, 433, 369, 422, 298 this is 45 points! :D

Answers

1. First of all arrange the data set in either ascending or descending order.
12, 19, 24, 26, 31, 38, 53.  N = 7 (number of data items)
Median position = 1/2(N + 1)th item = 1/2(7 + 1)th item = 1/2(8)th item = 4th item = 26
First quatile = 1/4(N + 1)th item = 1/4(7 + 1)th item = 1/4(8)th item = 2nd item = 19
Third quatile = 3/4(N + 1)th item = 3/4(7 + 1)th item = 3/4(8)th item = 6th item = 38
Interquatile range = Third quartile - first quatile = 38 - 19 = 19

Trinity bought two 6-foot long boards to make a set of shelves. If she cuts each shelf to a length of 24 inches, how many shelves can she make from those boards?

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The answer is 6 Because it's 12 inches in a foot and You add the two boards together gives you 12 feet 2 feet is equaled to 24 inches 6X2= 12feet
the first thing you want to do is convert the boards from feet to inches which would be 72 inches then you divide that by 24 which should equal three and then you do the same for the other board so 6 shelves in total.

Ms.stoner purchased computer for 1,150. If the sales tax is 7.5 what is the total purchase?

Answers

Answer:

$1,236.25‬

Step-by-step explanation:

Since sales tax is 7.5% of the purchase, and since the pc costs 1,150, take 7.5% of 1,150, and add 1,150 and the new value together.

7.5 / 100 = 0.075

1150 * 0.075 = 86.25

1150 + 86.25 = 1236.25