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2 years ago

Cual descripción de 3a+2b-7

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

5 0

Answer:

No puedes simplificar mas esa equation porque no ai nada que la puede reducir

Step-by-step explanation:

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Noam must share a cash prize equally among 4 winners. If each person receives $125, what is the amount of the prize

sertanlavr [38]

Answer:

c. 500

Step-by-step explanation:

125+125=250

250+125=375

375+125=500

5 0

2 years ago

Read 2 more answers

A population of mice is increasing exponentially. On Monday there were 120 most. One month later there were 132 most. Ready func

djyliett [7]

Answer:

$y=120 * 1.1^x$ --- function

The monthly rate is 10%

Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y=ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 = a * b^0$

$120 = a * 1$

$120 = a$

$a=120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute: $a=120$

$132 = 120 * b$

Solve for b

$b = \frac{132}{120}$

$b = 1.1$

So, the function is:

$y=ab^x$

$y=120 * 1.1^x$

To calculate the monthly rate (r), we have:

$y =a(1 + r)^x$

Compare to: $y =ab^x$

$1 + r = b$

Make r the subject

$r = b-1$

Substitute $b = 1.1$

$r = 1.1-1$

$r = 0.1$

Express as percentage

$r = 0.1*100\%$

$r = 10\%$

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2 years ago

The amount of radioactive uranium changes with time. The abscissas and ordinates of the points given are the time and amoung of

kakasveta [241]

The answer is A. f(t) = 100(0.25)t

This may be solved by inserting all points to your answer and sseeing if they work. Since A. f(t) = 100(0.25)t fits with all points, this best represents the relationship between f(t) and t.

Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.

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3 years ago

At noon, a tank contained 5 cm of water. After several hours, it contained 4 cm of water. What is the percent decrease of water

dolphi86 [110]

Answer:

2cm I think sorry If its wrong

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