A jar contains 54 pennies,and 2/3 of the coins in the jar are pennies. How many coins are there?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

since 54 is 2/3 of the jar then you divide 54 in half which then gives you 27 and you add that to 54 then your final answer is 81

:) hope that helps

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Nina put together 6 squares to make a rectangle. There are 3 rows of squares. Each row has 2 squares. How many small and large squares in all are in the rectangle. Explain your answer.

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Dear Bethanyawadle, you can find 8 squares, large and small. You have the six small squares total (6), and you have two large squares grouping two squares that are 2x2. (2). Add 6 and 2 to get 8 squares.

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22 is what percent more than 20?

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The perimeter of a rectangle is 30 inches. If it's length is three times it's width, find the dimensions. Show work if possible.Next, a volleyball coach plans her daily practices to include 10 minutes of stretching, 2/3 of the entire practice scrimmaging, and the remaining practice time working on drills. On Wednesday, the coach planned 100 minutes of stratching and scrimmaging. How long, in hours, is the entire practice? Show work if possible.

Homework due tommorrow......PLEASE HELP!!!!!

Answers

The rectangle problem:

First, create some variables.
w = width
l = length

Then you know that the length is 3 times the width, so
l = 3w

The equation for perimeter is
P = 2(l+w)

Now you use substitution, substituting the 3w for l because you found that earlier.

P = 2((3w) + w)

And simplify.
P = 2(4w)
P = 8w

And you know P = 30 because they told you that.
30 = 8w
w = 15/4 inches, or 3.75 inches

Now substitute that value back into that first equation,
l = 3w
l = 3(15/4)
l = 45/4 inches, or 11.25 inches.

The dimensions are 11.25in for length and 3.75in for width.

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The volleyball problem:

100 minutes of stretching and scrimmaging combined, and you know 10 have to be stretching, so 90 is scrimmaging.

s = scrimmaging
T = total time

s = 2/3T (they gave you this)
90 = 2/3T
T = (90*3)/2
T = 270/2
T = 135 minutes, or 2 hours and 15 minutes.

PLZ HELP ASAP! U WILL GET 25 POINTS IF U HELP!(c) The graph shows the number of laps Kailee ran around a track over a given number of minutes

(c) If she continued to run at the same rate, how many laps would she run in 30 min?

The points on the graph are (11,4.4) and (5.5,2.2)

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Describe another method to compare cost

Answers

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