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Sauron [17]
3 years ago
15

Mark is a coin collector at the first store he went to he bought 3 sets of 4 coins at the second store he bought 5 sets of 3 coi

ns he then decided to sell 5 coins he totaled his number of coins and the gave his brother 8 coins how many coins does he have left?
Mathematics
2 answers:
tamaranim1 [39]3 years ago
7 0

Answer:

Step-by-step explanation:

14

Evgen [1.6K]3 years ago
6 0

Answer:

mark liked to collect at the first store he went to he brought 3 sets of 4 coins at second store he brought 5 sets of 3 coins he then decided to sell 5 coins he totaled his number of coins and gave his brother 8 coins how many coins does he have left

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A line has a y intercept of 7 and a slope of 3/4, and goes DOWNHILL. What is the equation of this line?
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21. Randy owns a computer store. In 1990, he sold 150 monitors. In 2000, he sold 900
lutik1710 [3]

Answer:

y=75x+150

Step-by-step explanation:

Let y represent the number of monitors sold.

Given:

x is the number of years since 1990.

So, for the year 1990, x=0.

For the year 2000, 10 years passed. So, x=10.

Now, monitors sold in 1990 are 150. So, at x=0,y=150

Monitors sold in 2000 are 900. So, at x=10,y=900

Thus, the two points are (0,150) and (10,900).

The slope of a line with points (x_{1},y_{1}) and (x_{2},y_{2})  is given as:

Slope, m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

For the points (0,150) and (10,900), the slope is given as:

Slope, m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\ m=\frac{900-150}{10-0}\\ m=75

Now, the y-intercept is the point where x=0. So, the point (0,150) has x value as 0.

So, the y-intercept is 150.

Equation of a line in slope-intercept form is given as:

y=mx+b

Where, m is the slope and b is the y intercept.

Here, m=75 and b=150.

Therefore, the equation that represents the above data is given as:

y=75x+150

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3 years ago
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Answer:

The another way to write 26,000 = <em><u>10×2,600</u></em>.

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