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3 years ago

Cost of sweaters

Mathematics

1 answer:

Mamont248 [21]3 years ago

8 0

Answer:

I would say constant, $19/sweater. The table doesn't go up by 2s or 3s.

Step-by-step explanation:

You might be interested in

7 times as much as the sum of 1/3 and 4/5

LenKa [72]

1.86 is your answer
1/3*4/5=4/15
4/14*7/1=28/15
28/15=1.86
Your answer is 1.86

Hope this helps.

7 0

4 years ago

What is the slope of the line represented by the equation y= 4/5x-3

guajiro [1.7K]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

Slope of a line is the co efficient of x in the given line.

$y = \frac{4}{5} x - 3 \\ y = mx + b$

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3 years ago

I need the answer to the question on the image

bekas [8.4K]

Answer:

x should equal 10 because 10 divide by -5 would equal -2

4 0

2 years ago

The width of a rectangle is 12 less than twice the length, and the area of the rectangle is 270m2.

NikAS [45]

Answer:

Step-by-step explanation:

8 0

3 years ago

A landscaper, who just completed a rectangular flower garden measuring 15 feet in length by 7 feet in width, orders 1 cubic ya

grin007 [14]

The width of the border will be 0.1648... ft or 1.9786... inches.

Explanation

Lets assume, the width of the border is $x$ ft.

The rectangular garden is 15 ft in length and 7 ft in width. So, the area of the garden $=(15*7)ft^2= 105 ft^2$

Now, the length of the garden including border $=(15+2x) ft$ and the width of the garden including border $=(7+2x) ft$

So, the area of the garden including the border $= (15+2x)(7+2x) ft^2$

Thus the area of the border $=[(15+2x)(7+2x)-105] ft^2$

Total amount of premixed cement needed is 1 yard³ = 27 ft³

As the depth of the border is 44 inches or $(\frac{44}{12})ft$ or $(\frac{11}{3})ft$ , so....

$\frac{11}{3}[(15+2x)(7+2x)-105] = 27\\ \\ 11(105+44x+4x^2 -105)=81\\ \\ 11(4x^2+44x)=81\\ \\ 44x^2+484x-81=0$

Using quadratic formula....

$x= \frac{-484+/-\sqrt{484^2-4(44)(-81)}}{2(44)}\\ \\ x= \frac{-484+/-\sqrt{234256+14256}}{88}\\ \\ x= \frac{-484+/-\sqrt{248512} }{88}\\ \\ x= 0.1648...$

(Negative value ignored)

So, the width of the border $=0.1648...ft= (0.1648...*12)inches= 1.9786...inches$

5 0

3 years ago