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grandymaker [24]
3 years ago
7

Write two word sentences for the equation r/0.2=40​

Mathematics
1 answer:
Dmitry [639]3 years ago
3 0

Answer: r is 8

Step-by-step explanation:

Given the equation r / 0.2 = 40

Make r the subject of the the formula:

r = 40 X 0.2

r = 8

Thus, the two-word sentence for the equation is "r is 8"

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Aha please help!!!!! im a bit confused lol
Stels [109]

Answer:

e : g = 2 : 7

Step-by-step explanation:

e/f = 3/7

e = 3f/7

f/g = 2/3

g = 3f/2

e/g = (3f/7)/(3f/2) = 2/7

3 0
2 years ago
2 Construct a rational function that will help solve the problem. Then, use a calculator to answer the question.
vaieri [72.5K]

Answer:

<u><em>Dimension of box:-</em></u>

Side of square base = 10 in

Height of box = 5 in

Minimum Surface area, S = 300 in²

Step-by-step explanation:

An open box with a square base is to have a volume of 500 cubic inches.

Let side of the base be x and height of the box is y

Volume of box = area of base × height

                 500=x^2y

Therefore, y=\dfrac{500}{x^2}

It is open box. The surface area of box, S .

S=x^2+4xy

Put  y=\dfrac{500}{x^2}

S(x)=x^2+\dfrac{2000}{x}

This would be rational function of surface area.

For maximum/minimum to differentiate S(x)

S'(x)=2x-\dfrac{2000}{x^2}

For critical point, S'(x)=0

2x-\dfrac{2000}{x^2}=0

x^3=1000

x=10

Put x = 10 into y=\dfrac{500}{x^2}

y = 5

Double derivative of S(x)

S''(x)=2+\dfrac{4000}{x^3} at x = 10

S''(10) > 0

Therefore, Surface is minimum at x = 10 inches

Minimum Surface area, S = 300 in²

7 0
3 years ago
12-packs of skwunch apple juice cost $3.00 after a 40% discount.Which equation would allow you to find the original price of the
igomit [66]
The answer is 8
Hope this help and plz give me points thank u :)
7 0
3 years ago
Read 2 more answers
On a scale drawing a building measures 4.5 cm tall is the scale of the drawing is 25 m per2 cm how tall is the actual building
ioda

Answer:

Actual height  of the building =112.5 meters

Step-by-step explanation:

Given

Scale of the drawing

1 cm = 25 meters

This means that any 1 cm line on the map represents a length of 25 meters in actual.

The height of the building on map = 4.5 cm

Actual height  of the building

= 4.5 * 25\\=112.5meters

7 0
3 years ago
SQUARE ROOT OF 100<br><br>THANKS -,-​
iren2701 [21]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Square root of 100 ~

  • \sqrt{100}

  • \sqrt{10 \times 10}

  • 10

Thanks again ~

7 0
2 years ago
Read 2 more answers
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