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aev [14]
4 years ago
9

The sum of two numbers is x. If one of the numbers is 12, what is the other ?

Mathematics
2 answers:
Vlad1618 [11]4 years ago
6 0
If the sum of two numbers is x

Then the equation is like this:

a+b = x

Then it says one of the number is 12. Change either a or b into 12

12 + b =x

If we want to find the other number, we need the make it into the subject

b = x - 12

Hope that help.
guajiro [1.7K]4 years ago
3 0
 Y would be the other unknown number.
 
12 + Y = X

12-12+Y=X-12

Y=X-12

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the answer would be .5 miles

Step-by-step explanation:

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In which expression is the number 5 a factor?<br>A. z+5<br>B. z-5<br>C.5z<br>D.5/z​
LenaWriter [7]

The correct answer is: C.5z

Further explanation:

A factor is a number that is multiplied with a number

Let us look at the options one by one

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<u>B. z-5</u>

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Keywords: Factors, Multiple Choice

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3 years ago
A certain population of mice is growing exponentially. After one month there are 48. After 2 months there are "192" mice. Write
REY [17]

Answer:

P(t) = 12e^1.3863k

Step-by-step explanation:

The general exponential equation is represented as;

P(t) = P0e^kt

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k is the constant

P0 is the initial population of the mice

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If after one month there are 48 population, then;

P(1) = P0e^k(1)

48 = P0e^k ...... 1

Also if after 2 months there are "192" mice, then;

192 = P0e^2k.... 2

Divide equation 2 by 1;

192/48 = P0e^2k/P0e^k

4 = e^2k-k

4 = e^k

Apply ln to both sides

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k = ln4

k = 1.3863

Substitute e^k into equation 1 to get P0

From 1, 48 = P0e^k

48 = 4P0

P0 = 48/4

P0 = 12

Get the required equation by substituting k = 1.3863 and P0 = 12 into equation 1, we have;

P(t) = 12e^1.3863k

This gives the equation representing the scenario

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2 years ago
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ratelena [41]

Answer:

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Step-by-step explanation:

let G be Greg's score

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