Based on the information given the gain or loss percent on the whole transaction is 1%.
<h3>Gain or loss percent:
</h3>
First step is to calculate the profit on the whole transaction
Profit=(8%×8,000)-(6%×8,000)
Profit=$640-$480
Profit=$160
Now let calculate the gain or loss percentage on the whole transaction
Gain or loss percentage=160/(8000+8000)×100
Gain or loss percentage=160/16000×100
Gain or loss percentage=1%
Inconclusion the gain or loss percent on the whole transaction is 1%.
Learn more about gain or loss here:brainly.com/question/25278228
Answer:
60°
Step-by-step explanation:
30° + 90° = 120°
180° - 120° = 60°
180 is the sum of interior angels
Answer:
1.2
Step-by-step explanation:
Convert 8÷6.4038÷6.403 to a decimal.
1.249414331.24941433
Find the number in the tenth place 22 and look one place to the right for the rounding digit 44. Round up if this number is greater than or equal to 55 and round down if it is less than 55.
1.21.2
Need more help?
Given
![x+1 = \sqrt{7x+15}](https://tex.z-dn.net/?f=x%2B1%20%3D%20%5Csqrt%7B7x%2B15%7D)
We have to set the restraint
![x+1\geq 0 \iff x \geq -1](https://tex.z-dn.net/?f=x%2B1%5Cgeq%200%20%5Ciff%20x%20%5Cgeq%20-1)
because a square root is non-negative, and thus it can't equal a negative number. With this in mind, we can square both sides:
![(x+1)^2=7x+15 \iff x^2+2x+1=7x+15 \iff x^2-5x-14 = 0](https://tex.z-dn.net/?f=%28x%2B1%29%5E2%3D7x%2B15%20%5Ciff%20x%5E2%2B2x%2B1%3D7x%2B15%20%5Ciff%20x%5E2-5x-14%20%3D%200)
The solutions to this equation are 7 and -2. Recalling that we can only accept solutions greater than or equal to -1, 7 is a feasible solution, while -2 is extraneous.
Similarly, we have
![x-3 = \sqrt{x-1}+4 \iff x-7=\sqrt{x-1}](https://tex.z-dn.net/?f=x-3%20%3D%20%5Csqrt%7Bx-1%7D%2B4%20%5Ciff%20x-7%3D%5Csqrt%7Bx-1%7D)
So, we have to impose
![x-7\geq 0 \iff x \geq 7](https://tex.z-dn.net/?f=x-7%5Cgeq%200%20%5Ciff%20x%20%5Cgeq%207)
Squaring both sides, we have
![(x-7)^2=x-1 \iff x^2-14x+49=x-1 \iff x^2-15x+50 = 0](https://tex.z-dn.net/?f=%28x-7%29%5E2%3Dx-1%20%5Ciff%20x%5E2-14x%2B49%3Dx-1%20%5Ciff%20x%5E2-15x%2B50%20%3D%200)
The solutions to this equation are 5 and 10. Since we only accept solutions greater than or equal to 7, 10 is a feasible solution, while 5 is extraneous.
Just add numbers to get to 45