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ASHA 777 [7]
3 years ago
7

For the fraction 3/25, (a) write a percent and (b) write a decimal.

Mathematics
2 answers:
Marysya12 [62]3 years ago
6 0

Answer:

12%

.12

Step-by-step explanation:

3/25 * 4/4 = 12/100

We know that out of 100 means percent

12%

Since it is over 100, move the decimal 2 places to the left

.12

Tatiana [17]3 years ago
6 0

Answer:

a. 12%

b. 0.12

Step-by-step explanation:

To make it easier to write it in both forms, you can make it into a fraction with 100 in the denominator.

You know that 25 * 4 = 100, so you would want to multiply both the numerator and the denominator by 4.

(3*4)/(25*4) = 12/100

12/100 is equal to 12%.

You can move the decimal two places to the left to divide it by 100.

12/100 is also equal to 0.12.

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3 years ago
7 x 3/4
Mkey [24]

7 3/4

Step 1: Multiply 7 and 4.

            7 x 4=28

Step 2:Add 3 to their product.

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Step 3:The number so obtained is the numerator and the denominator remains the same.

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I think that is what you are looking for!

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7 0
3 years ago
Which ordered pair is a solution to the system of equations y=x+3 and y=x^2-x
Elenna [48]

For this case we have the following system of equations:

y = x + 3\\y = x ^ 2-x

Equating the equations we have:

x ^ 2-x = x + 3\\x ^ 2-x-x-3 = 0\\x ^ 2-2x-3 = 0

To find the solutions we factor the equation. To do this, we look for two numbers that, when multiplied, result in -3 and when added, result in -2.

These numbers are: -3 and +1

-3 + 1 = -2\\-3 * (+ 1) = - 3

Thus, the factored equation is:

(x-3) (x + 1) = 0

Then, the solutions for the variable "x" are:

x_ {1} = 3\\x_ {2} = - 1

We find the solutions for the variable "y":

y_ {1} = x_ {1} + 3 = 3 + 3 = 6\\y_ {2} = x_ {2} + 3 = -1 + 3 = 2

Thus, the solutions are:

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ANswer:

(x_ {1}, y_ {1}): (3,6)\\(x_ {2}, y_ {2}): (-1,2)

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4 years ago
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