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astra-53 [7]
3 years ago
7

Need help please help me

Mathematics
1 answer:
yanalaym [24]3 years ago
3 0
Write me the question
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To make hummingbird nectar you must use 4 cups of water and 1 cup of sugar. What is the ratio of water to sugar?
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4:1,

there are 4 cups of water for every 1 cup of sugar
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3 years ago
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What is the ratio of the sector area to the area of the
grin007 [14]

Answer: 1/5

Step-by-step explanation: l

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A company is constructing an​ open-top, square-based, rectangular metal tank that will have a volume of 49 cubic feet. What dime
yawa3891 [41]

Answer:

b = 4.6 ft

h = 2.3 ft

Step-by-step explanation:

The volume of the tank is given by:

b^2*h=49

Where 'b' is the length of the each side of the square base, and 'h' is the height of the tank.

The surface area can be written as:

A=b^2+4bh\\A=b^2+4b*({\frac{49}{b^2}})\\A=b^2+\frac{196}{b}

The value of b for which the derivate of the expression above is zero is the value that yields the minimum surface area:

\frac{dA}{db} =0=2b-\frac{196}{b^2}\\2b^3=196\\b=4.61\ ft

The value of h is then:

h=\frac{49}{4.61^2}\\h=2.31\ ft

Rounded to the nearest tenth, the dimensions are b = 4.6 ft and h = 2.3 ft.

7 0
3 years ago
If anyone could help also step by step please with work
Rasek [7]

9514 1404 393

Answer:

  m = 1/3

Step-by-step explanation:

<u>Step 1</u>. Pick a line of the table to use as (x1, y1).

<u>Step 2</u>. Pick a different line of the table to use as (x2, y2).

<u>Step 3</u>. Use the slope formula:

  m = (y2 -y1)/(x2 -x1)

<u>Step 4</u>. Simplify the result.

__

Here are these steps for this problem.

1, 2. use (x1, y1) = (-9, -5) and (x2, y2) = (-3, -3)

3. m = (-3 -(-5))/(-3 -(-9)) = 2/6

4. m = 1/3

6 0
2 years ago
A pair of boots marked for $25 was sold at $15. What was the
patriot [66]

Answer:

40%

Step-by-step explanation:

Original price: $25

Discounted price: $15

Amount of discount: $25 - $15 = $10

The boots sold for $10 less than the original price.

To find the percent discount, we need to find what percent of $25 is $10.

percent = part/whole * 100%

percent = 10/25 * 100%

percent = 0.4 * 100%

percent = 40%

5 0
3 years ago
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