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garik1379 [7]
3 years ago
11

Student

Mathematics
1 answer:
Bess [88]3 years ago
6 0

Step-by-step explanation:

Is that the whole question or can you give me more information?

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The length of a rectangle is 1 inch less than twice the width. the area is 21 inches^2 what is the length?
ale4655 [162]
Hi.

Formula for area: A = 2l + 2w, where l is the length and w is the width.

Given information:
• l = 2w - 1
• A = 21 in^2

We can plug in our values accordingly and solve for w.

A = 2l + 2w
21 = 2(2w - 1) + 2w
21 = 4w - 2 + 2w
23 = 6w - 2
23 = 6w
3.83 = w

Plug 3.83 for w into 2w - 1 to find length.

2(3.83) - 1
7.66 - 1
6.66

Finally, check your work by plugging your values into the original equation.

21 = 2(6.66) + 2(3.83)
21 = 13.32 + 7.66
21 = 20.98

Answer:
The length is approximately 6.66 inches.
4 0
3 years ago
A bag contains tiles of different colors. Jackson randomly selects a tile from the bag and returns the tile to the bag after rec
quester [9]

Answer:

2/15

Step-by-step explanation:

The answer choices to this question do not make sense since probability is a measure that is always <= 1.0

Based on the number of times a particular colored tile is drawn we can assume that at the minimum there are 6 green, 20 red, 7 blue, 8 purple and 4 black tiles

Total number of tiles = 6 + 20 + 7 + 8 + 4 = 45

Probability of drawing a green tile = 6/45 = 2/15

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2 years ago
I need help on 8 and 9 plz help me
pochemuha
7 is just adding.
8 is counting by odd numbers.
9 is a rotation
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Find last​ year's salary​ if, after a 6% pay​ raise, this​ year's salary is $32,330.
Annette [7]
5388.33$ was last years salary increase 

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You are forecasting sales across Retail products for 2005 and want to compare those numbers to 2004. If your sales for 2005 are
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You will need more information on the years.
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