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vivado [14]
3 years ago
9

Three times the sum of a number and six

Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0

Answer:

3(x+6)

Step-by-step explanation:

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Jack is mowing a lawn that has a shed. needs to know area of lawn to mow. dimensions of yard are 5x by 13 x-4 . she'd are 2x by
Elena-2011 [213]
The diagram of the lawn and the shed is shown below.

The area of the lawn needed to be mowed equals to the area of the yard minus the area of the shed

The area of the yard = (5x)(13x-4) = 65 x^{2} -20x
The area of the shed = (2x)(2x+4)=4 x^{2} +8x

The area of the lawn = 65 x^{2} -20x-(4 x^{2} +8x)
The area of the lawn = 65 x^{2} -20x-4 x^{2} -8x
The area of the lawn = 61 x^{2} -28x 

5 0
3 years ago
Please help fast!!!
denpristay [2]

Answer:

whats the question

Step-by-step explanation:

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6 0
3 years ago
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The table shows how much a store charges for certain numbers of pencils. Number of pencils (p) Cost (c) 4 $0.72 7 $1.26 12 $2.16
Arada [10]
Find the rate of change, (y2-y1)/(x2-x1), from the data given...

(2.16-1.26)/(12-7)=0.18

(1.26-0.72)/(7-4)=0.18

Since the rate is constant, this is a linear equation of the form y=mx+b.  Furthermore, since 0 pencils cost 0, b=0, so the cost of the pencils is simply the number of pencils times 18 cents...

c(p)=0.18p  (cost with respect to pencils is 0.18 times the number of pencils)
7 0
3 years ago
The formula for the perimeter of a rectangle Is P = 2(1+w).
rjkz [21]

Answer:

P-l/2 = w

Step-by-step explanation:

First you divide both sides by 2 then you subtract L from both sides leaving you with P minus L / 2 equals W.

7 0
3 years ago
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The figure below shows half circles at the ends of a rectangle with the demensions shown. Which is closest to the area of the fi
loris [4]
The closest answer is 95 square inches. Here is why.  You can find the area of the rectangle by multiplying the length by the width.  This would be 15 x 5 = 75 square inches.  The area of the whole circle that is created when you put both halves together would be found by multiplying 3.14 x 2.5 in (the radius) x 2.5 in.  This answer is about 20 square inches.  The combined area is approximately 95 square inches.
7 0
4 years ago
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