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3 years ago

I hope you guys can see it but if you answer it i’ll make you the brainiest

Mathematics

1 answer:

marysya [2.9K]3 years ago

8 0

Answer:

Step-by-step explanation:

the smallest length that the pen could be is the with x length => 209 sq ft

where the length is 8 feet more than the width.

so find that where x *( x+8) = 209

then $x^{2}$ + 8x - 209 = 0

using the quadratic equation I got 11

11* ( 11+8) =209

so that's the smallest it could be

so the width must be greater than 11 to make the pen greater than 209 sq ft. :)

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I do not understand this. Can you please explain.

klemol [59]

Answer:

Step-by-step explanation

y^(3/5) = $\sqrt[5]{y{3}}$

y^(-3/5) = 1/ $\sqrt[5]{y{3}}$

3 0

3 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago

Nathan brought a pair of boots for $80 and 1 shirt for $20. the sales tax is 5%. how much did Nathan pay for all the items inclu

Paladinen [302]

He paid 103$ hope it helps

7 0

3 years ago

Read 2 more answers

@mehek14

gayaneshka [121]

X=cost per hamburgurs
y=cost per hot dog

200x+150y=1450
200x+250y=1750

we can multiply first equation by -1 and add to 2nd

-200x-150y=-1450
<u>200x+250y=1750 +</u>
0x+100y=300

100y=300
divide both sides by 100
y=3

sub back

200x+150y=1450
200x+150(3)=1450
200x+450=1450
minus 450 both sides
200x=1000
divide both sides by 200
x=5

the cost of a hamburgur is $5
the cost of a hot dog is $3

8 0

3 years ago

Read 2 more answers

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the

Fed [463]

Answer:

Step-by-step explanation:

6 0

3 years ago