The area of a rectangular ice skating rink is 900 square yards if the length of the rink is 100 yards what is the width of the rink ?

Answers

Answer 1

Answer: Well to find the area of a rectangle you have to go length times width.
If the area is 900 and the length is 100. You already have a basic equation.

100 times X = 900.
X will equal the width.

To get the answer, you have to reverse this equation so you divide the area by the length.

900 divided by 100. That comes to 9.
The width of the rectangle is 9. Hope this helped!:)

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Madame Pickney has a rather extensive art collection and the overall value of her collection has been increasing each year. Three years ago, her collection was worth $500,000. Two years ago, the value of the collection was $550,000 and last year, the collection was valued at $605,000.Assume that the rate at which Madame Pickney’s art collection’s value increase remains the same as it has been for the last three years. The value of the art collection can be represented by a geometric sequence. The value of the collection three years ago is considered the first term in the sequence.Write an explicit rule which can be used to determine the value of her art collection n years after that. Use this to determine the value of her collection 10 years after she started tracking its worth rounded to the nearest dollar.
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A factor of 50 between 11 and 20
How many quarters are in $1.00

Solve for x. Express the answer in simplest form.

2/1 = 8z -2/9

Answers

5/18 or in dec .27777777

The male to female ratio in Taiwan is 52 to 48.Write this ratio as a fraction in reduced form. Please show work. Thanks

Answers

52/48 reduce
since they are both even start with 2
52/48= 26/24
divide by 2 again
13/12
cannot be reduced any more since 13 is a prime number
13 males/12 females

hope this helps

52=2*2*13
48=2*2*2*2*3
cancle the factors which are common

you estimate that a jar contains 68 marbles. The actual number of marbles is 60. Find the percent error.

Answers

ANSWER: 13.3...%

To find the percent of error, you must find the absolute value of the error, in this case 8 (68-60), and divide it by the actual amount.

$8/60=0.133...$

$0.133... = 13.33...%$

SOLVING SYSTEMS OF EQUASIONS BY ELIMINATION. -4x-2y=-12
4x+8y=-24

Answers

Your going to add the two equations to cancel out the x term. You get 6y=-36. Divide both sides by 6 and you get y=-6. Plug y in in your first equation and you'll get -4x-2(-6)=-12. Multiply the -2 by the -6 and you'll get -4x+12=-12. Subtract 12 from both sides and you get -4x=-24. Divide both sides by -4 and you get x=6. Your final answer is x=6, y=-6.

-4x-2y=-12
4x+8y=-24

Cancel out the x
6y=-36
Divide both sides by 6
y=-6

Substitute the value of y to any equation
-4x-2y=-12
-4x-2[-6]=-12
-4x+12=-12
-4x=-24
Divide both sides by -4
x=6

Jesse drives to work. The distance Jesse’s car travels (d) on a number of gallons of gas (g) is given by the equation d = 15g. The constant of proportionality in terms of distance traveled per gallon of gas is

a. 15
b. 5
c. 1
d. 1/15