5x + 9+x = 9x
x=3
hope it helps
Answer:
Original amount invested = $3400 .
Step-by-step explanation:
Let the original investment of Steve = $x
Stock increased in the first year = 50% of amount invested
Therefore total amount after one year = x + 0.5x = 1.5x
Commission paid to the stock broker = $350
Amount lost by him = $400
Amount withdrawn by him = $300
Total amount decreased from the amount after 1 year
= 1.5x - (350 + 400 + 300)
= 1.5x - 1050
This remaining amount is doubled, so the final amount
= 2(1.5x - 1050)
= 3x - 2100
This final amount is equal to $8100
3x - 2100 = 8100
3x = 8100 + 2100
3x = 10200
x = $3400
Therefore original amount invested in the stock market was $3400 .
Answer: option a. A customer earns 1 free night per 10 nights stayed.
Explanation:
Building a table can help you:
x: number of nigths stayed ---------- f(x) = 1/x: number of free nights
10 --------------------------------------------- 10/10 = 1
20 -------------------------------------------- 20/10 = 2
30 -------------------------------------------- 30/10 = 3
40 -------------------------------------------- 40/10 = 4
Then, the pattern permits you to conclude that a customer earns 1 free night per each 10 nights stayed, which is the option a.
What the person above me said ⬆️
Answer that goes in the box on the left: 2
Answer that goes in the box on the right: 4
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The slope is 2 since each time x increases by 1, y increases by 2. Or put another way, each time we go up 2 units, we move to the right 1 unit.
So that's why 2 goes in the box on the left.
You can use the slope formula m = (y2-y1)/(x2-x1) to get the same result
The line goes through 4 on the y axis, so this is the y intercept and the value you type into the second box (box on the right).
Recall that y = mx+b is the general slope intercept form
m = slope = 2 = 2/1
b = y intercept = 4
The equation y = mx+b turns into y = 2x+4. This is known as a linear equation as it produces a straight line graph.