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hram777 [196]
2 years ago
10

A watch is sold for $130 at a loss of $30. what was the original cost of the watch​

Mathematics
1 answer:
posledela2 years ago
5 0

Answer:

130.00 + 30.00 = $160.00

Step-by-step explanation:

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The Students at Winwood elementary school collected 574 cans of food in 20 days for a food drive. What was average number of can
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Answer:

About 29

Step-by-step explanation:

575 cans of food / 20 days = About 28.75 cans a day, rounded to 29.

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Step-by-step explanation:

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- 4 x + 9 = 21 x=___ help
faust18 [17]
X=-3
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telo118 [61]

Answer: the x-intercept is (-10,0), the y-intercept is (0,45/2)

Explanation:

First, we need to determine the function describing the line.

From the table, it is obvious that the y values increase by 9 every increase of 4 of the x values. So, the slope is 9/4 and the function looks like this:

y = m x+ b = \frac{9}{4}x + b

with the y-intercept (or bias) b still unknown. This can be determined by using one of the point from the table, like so:

-18 = \frac{9}{4}\cdot 2+b\\\implies b = -18 -\frac{9}{2}=\frac{45}{2}\\y = \frac{9}{4}x+\frac{45}{2}

The above function form makes it easy to read off the y-intercept, which is (0,45/2) or (0,22.5). The x-intercept is obtained by setting y = 0 and solving for x:

y = \frac{9}{4}x+\frac{45}{2}\\0 = \frac{9}{4}x+\frac{45}{2}\\-\frac{45}{2}=\frac{9}{4}x\\x = -10

The x-intercept is (-10,0)

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I need what is the slope of the line graphed
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-3/5

Step-by-step explanation:

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