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3 years ago

15

4 girls and 2 boys are working on an art project. They have four square pieces of felt. If each person gets an equal share of th

e felt, how much of piece of felt will each person get ??

1 answer:

ExtremeBDS [4]3 years ago

3 0

Three groups of 2 get one sheet and one person get they own

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vovangra [49]

C 10%
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3 years ago

Can someone find this out please and thank you!

vredina [299]

-7 replaces the t so it would be

w(-7) = -2(-7)+1
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3 years ago

N is an integer. Prove that (2n+1)(n+3)+(2n+1)(n-2) is not a multiple of 2. thanks.

KonstantinChe [14]

Answer:

(2n + 1)(n + 3) + (2n + 1)(n - 2)

= (2n + 1)(n + 3 + n - 2)

= (2n + 1)2n + 1)

= 4n² + 4n + 1

= 2(2n² + 2n) + 1

can see 2(2n² + 2n) is a multiple of 2 but 1 isnt a multiple of 2

=> 2(2n² + 2n) + 1 is not a multiple of 2

=> (2n + 1)(n + 3) + (2n + 1)(n - 2) is not a multiple of 2

Step-by-step explanation:

3 0

2 years ago

Roderick wants to draw a circle for which the numerical value of the circumference is greater than the value of the area. Which

Dima020 [189]

The best way to justify which answers are correct are to calculate the circumference and the area for each of the circles with the given radii. I organized this information into a chart.

Circumference | Area

1/2 3.14 0.785

1 6.28 3.14

1 1/2 9.42 7.065

2 12.56 12.56

2 1/2 15.7 19.625

The first three choices will result in a numerical value for the radius that is smaller than the area.

4 0

3 years ago

Read 2 more answers

A farmer has $1500 available to build an E-shaped fence along a straight river so as to create two identical pastures. The mater

Dahasolnce [82]

Answer: The largest dimensions that are possible would be 50 foot by 125 foot.

Step-by-step explanation:

Since we have given that

Amount a farmer has available = $1500

Let x be the side perpendicular to the river.

Let y be the side parallel to the river.

Number of section perpendicular to the river = 3

cost of material for the side parallel to the river = $6 per foot

Cost of material for the side perpendicular to the river = $5 per foot

So, total cost becomes

$Cost=6y+5(3x)=1500\\\\Cost=6y+15x=1500\\\\y=\dfrac{1500-15x}{6}}$

Area would be

$A=x\times y\\\\A=x(\dfrac{1500-15x}{6})\\\\A=\dfrac{1}{6}(1500x-15x^2)\\\\A'=\dfrac{1}{6}(1500-30x)$

Now, put A' = 0 to get the critical points.

So, it becomes,

$\dfrac{1}{6}(1500-30x)=0\\\\1500-30x=0\\\\1500=30x\\\\x=\dfrac{1500}{30}\\\\x=50$

$A''=\dfrac{-30}{6}=-5$

so, at x= 50 it will give maximum dimensions.

$y=\dfrac{1500-15x}{6}=\dfrac{1500-15\times 50}{6}=\dfrac{750}{6}=125$

So, the largest dimensions that are possible would be 50 foot by 125 foot.

7 0

3 years ago