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3 years ago

Classify .25252525. Please!!

Mathematics

2 answers:

WINSTONCH [101]3 years ago

7 0

Answer: what?????? but um is 6 inches small?

Step-by-step explanation:

slavikrds [6]3 years ago

7 0

Answer:

Rational

Step-by-step explanation:

It is rational because a rational number is a number that can be represented a/b where a and b are integers and b is not equal to 0.

.25252525 is equal to $\frac{100000000}{396000004}$

where a = 100000000

and b = 396000004

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Lisa goes to the mall one day and buys four shirts and three pairs of pants for $85.50. She returns the next day and buys three

hodyreva [135]

Answer:the price for one shirt is $7.5

the price for one pair of pants is $18.5

Step-by-step explanation:

Let x represent the price for one shirt.

Let y represent the price for one pair of pants.

Lisa goes to the mall one day and buys four shirts and three pairs of pants for $85.50. This means that

4x + 3y = 85.5 - - - - - - - - - -1

She returns the next day and buys three shirts and five pairs of pants for $115.00. This means that

3x + 5y = 115 - - - - - - - - - - - 2

Multiplying equation 1 by b3 and equation 2 by 4, it becomes

12x + 9y = 256.5

12x + 20y = 460

Subtracting, it becomes

- 11y = - 203.5

y = - 203.5/ -11 = 18.5

Substituting y = 18.5 into equation 1, it becomes

4x + 3×18.5 = 85.5

4x + 55.5 = 85.5

4x = 85.5 - 55.5 = 30

x = 30/4 = 7.5

4 0

3 years ago

Read 2 more answers

Graph a triangle (STU) and reflect it over the y-axis to create triangle ST'U'.

lukranit [14]

The x-coordinates of $\triangle S'T'U'$ will be the negation of the x-coordinates of $\triangle STU$

The line segment from S to the y-axis equals the line segment from S' to the y-axis. Similarly, the line segment from T to the y-axis equals the line segment from T' to the y-axis

See attachment for $\triangle STU$ and $\triangle S'T'U'$

In order to solve this question, I will make the following assumptions.

Assume that the coordinates of $\triangle STU$ are

$S = (4,5)$

$T = (5,9)$

$U=(3,8)$

Refer to attachment for illustrations

(1) Reflect $\triangle STU$ over y-axis and describe the transformation

To reflect $\triangle STU$ across the y-axis, the following rule must be followed

$(x,y) \to (-x,y)$

This means that:

$S = (4,5) \to S' = (-4,5)$

$T = (5,9) \to T' = (-5,9)$

$U=(3,8) \to U'=(-3,8)$

The description of the transformation is as follows:

Notice that the signs of the x-coordinates $\triangle STU$ and $\triangle S'T'U'$ of both triangles are different.

In other words, if the x-coordinate of one is positive, then the other will have a negative x-coordinate; and vice versa.

(2) Compare the segments and the line of reflection

To reflect across the y-axis means that the reflecting line is the y-axis, itself.

The distance between a point to the y-axis is the absolute value of the x-coordinate.

So, the distance between S and the y-axis is:

$S = |4| = 4$

The distance between S' and the y-axis is:

$S' = |-4| = 4$

We can conclude that the two line segments are equal.

This is the same for other point T and T' because of the formula used above.

From T and T' to the y-axis is:

$T =|5| =5$

$T' =|-5| =5$