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2 years ago

Can someone explain this to me please will give brainliest

1 answer:

3 0

The answer is A. for this, you have to set up a system of equations. the first one will be the area equation. since you know area=length x width, your equation will be LxW=50. the next equation is L=2W, since the length is two times the width. then, plug in 2W for the L in the other equation and you get 2W^2=50. divide by 2 and get W^2=25. square root both sides and you get W=5. plug back into the other equation to find L=10. Then, add the sides of the rectangle for the perimeter. 10+5+10+5=30.

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Easy points

goblinko [34]

Answer: 2

Step-by-step explanation:

try each value in the equation

2(0) + 1 = 3

0 + 1 = 3

1 ≠ 3

so 0 doesn’t work

2(1) + 1 = 3

2 + 1 = 3

3 = 3

this works, so the answer is 1

6 0

3 years ago

And can you help me with this also show work

Dmitriy789 [7]

Step-by-step explanation:

Fifth is B

Sixth I think it is D.

Hope this helps...

3 0

2 years ago

Stan savings account has a balance of $4706. After 4 years what will the amount of interest be at 4% compounded quarterly?

TiliK225 [7]

Answer:

Final amount after 4 years will be $5518.

Step-by-step explanation:

From the given question Principal amount in the account of Stan = $4706

and we have to calculate amount after 4 years with 4% interest compounded quarterly.

Formula will be final amount $A=A'(1+\frac{r}{n})^{nt}$

Here A' = $4706

t = 4 years

n = number of times compounded = quarterly that will be 4

r = .04

$A=4706(1+\frac{.04}{4})^{4\times 4}=4706(1+.01)^{16}$

$A=4706(1.01)^{16}=4706\times 1.17=$5518$

So the final amount after four years will be $5518.

3 0

2 years ago

Read 2 more answers

Kurt started a lawn moving business.he charges $6 for each lawn.he brought a lawn mower for $250 and after 3 months has a profit

hram777 [196]

He mowed 25 lawns hope this helps

4 0

3 years ago

the radius of the Earth is 6378.1 KM which is 2981 .1 km longer than the radius of Mars write and solve the equation to determin

Bad White [126]

$6,378.1 - 2,981.1

= 6,000 + 300 + 70 + 8 + 1/10 - 2,000 - 900 - 80 - 1 - 1/10

= (6,000 - 2,000) + (300 - 900) + (70 - 80) + (8-1) + (1/10-1/10)

= 4,000 - 600 - 10 + 7 + 0

= 3,400 - 3 

= 3,397$

7 0

3 years ago

Read 2 more answers