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ExtremeBDS [4]
3 years ago
9

What is the rational number equivalent to 1.28? The 1.28 has a line above the 28

Mathematics
1 answer:
Svetach [21]3 years ago
8 0
<span>the line over the 28 means the 28 repeats forever.
1.282828.... and so on
 let x be the rational number 1.28...
we can use this trick:
100*1.282828....= 128.282828...
(the decimal 28 part repeats) 100x = 128.28...
next: 100x - x = 128.282828... - 1.282828...
the .282828... part will be subtracted away
99x = 127
divide both sides by 99 to get
x= 127/99</span>
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Jenna found a pair of sneaker that cost $64.She has a 15% off coupon. How much will she pay for the sneakers?(without Tax?)
S_A_V [24]
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3 0
3 years ago
Indira is climbing and starts at 182.5 meters above sea level each hour she descends 36.5 meters the table shows the function re
VLD [36.1K]

The function relating in indira‘s height to the number of hours she mountain climbing is: y = -36.5x + 182.5

A linear equation is given by:

y = mx + b;

where m is the slope(rate of change), b is the initial value of y, y is the dependent variable and x is the independent variable.

Let x represent the number of hours spent climbing the mountain and y represent the distance above see level.

She starts at 182.5 meters above sea level, hence; b = 182.5 meters

She descends 36.5 meters each hour, hence m = -36.5 meter per hour

Therefore the equation becomes:

y = -36.5x + 182.5

Find out more at: brainly.com/question/19586594

5 0
2 years ago
(PLEASE HELP)
Alisiya [41]
Answer: d
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5 0
3 years ago
Find the distance between the two points in simplest radical form. (0,−7) and (−6,1)
astra-53 [7]

Answer:

10

Step-by-step explanation:

d = √(x2  -x1)² + (y2 - y1)²

√(-6 - 0)² + [1 - (-7)]²

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4 0
2 years ago
Sara scored 8 goals this season. This is two less than a third of the goals she scored last season.
Charra [1.4K]

Answer:

30 goals last season

Step-by-step explanation:

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10 = x / 3

x = 10 * 3

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Sara scored 30 goals last season

3 0
2 years ago
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