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victus00 [196]
3 years ago
11

I need help on this question anyone know this ?

Mathematics
1 answer:
WITCHER [35]3 years ago
7 0

Answer:

y = 4(2)^{x}

Step-by-step explanation:

An exponential function in standard form is

y = a b^{x}

Use ordered pairs from the table to find a and b

Using (0, 4), then

4 = a b^{0} ( note that b^{0} = 1 ), so

a = 4, then

y = 4 b^{x}

Using (1, 8)

8 = 4 b^{1} = 4b ( divide both sides by 4 )

b = 2

y = 4 (2)^{x} ← represents the values in the table

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A 25% vinegar solution is combined with triple the amount of a 45% vinegar solution and a 5% vinegar solution resulting in 20 mi
Murrr4er [49]

Complete Question: A 25% vinegar solution is combined with triple the amount of a 45% vinegar solution and a 5% vinegar solution resulting in 20 milliliters of a 30% vinegar solution.

Write an equation that models this situation and explain what each part represents in the situation. Then solve the equation.

Step-by-step explanation:

let the volume of the 45% vinegar solution be x litres ,

the volume of the 25% vinegar solution be 3x

and the volume of the 5% vinegar solution be y

summation of all gives,

x+3x+y = 20

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subtracting 4x from both sides to make y the subject of the equation, we have;

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To the concentration:

substituting for the value of x and y into equation x + 3x + y = 20, we have,

.45x + .25(3x) + .05(20-4x) = .3(20)

multiplying through by 100  to make whole figures we have;

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120x - 20x + 100 = 600

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subtracting 100 from both sides, we have;

100x = 600 - 100

100x = 500

dividing both sides by 100,

x = 5.

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nick is baking fudge. what is the minimum amount of plastic wrap needed to cover this piece of fudge?
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Answer:

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Step-by-step explanation:

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Okay so first,

Confirm: Every time we have 7 large sugar skulls, that also makes 5 large sugar skulls. So if you have 132 <u>ALTOGETHER</u>, then you'd need to do some multiplication/division. First, divide 132 by 5, that equals 26 small sugar skulls. Lastly, 132 ÷ 7 = 18 large sugar skulls. So there are 26 small sugar skulls and 18 large sugar skulls.

(I hope that was right, I tried my best :)

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Pachacha [2.7K]

Answer:

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Step-by-step explanation:

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m = (-1-12)/(8-5)

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