Pemdas, ok first 17 plus 8 is 15, 6 times 2 is 12 , so 15 minus 12 is 3. answer is 3
Answer:
40% . The single reduction together is 40%.
Step-by-step explanation:
Let the bicycle cost is x before reduced price.
First 25% is reduced and again 20% further reduced.
Let the single reduction is y% if the two reduction together are equal.
Solution,
Case .1
reduction cost
%
![=x\times 25/100](https://tex.z-dn.net/?f=%3Dx%5Ctimes%2025%2F100)
![=x/4](https://tex.z-dn.net/?f=%3Dx%2F4)
The cost of bicycle after reduction of 25% is
![=x-x/4=3x/4](https://tex.z-dn.net/?f=%3Dx-x%2F4%3D3x%2F4)
cost of reduction further reduction of 20%
%
![=3x\times 20/(4\times 100)](https://tex.z-dn.net/?f=%3D3x%5Ctimes%2020%2F%284%5Ctimes%20100%29)
![=3x/20](https://tex.z-dn.net/?f=%3D3x%2F20)
The new cost of bicycle is further reduction of 20% is
![=3x/4-3x/20](https://tex.z-dn.net/?f=%3D3x%2F4-3x%2F20)
![=\left ( 15x-3x \right )/20](https://tex.z-dn.net/?f=%3D%5Cleft%20%28%2015x-3x%20%5Cright%20%29%2F20)
![=12x/20=3x/5](https://tex.z-dn.net/?f=%3D12x%2F20%3D3x%2F5)
Case.2
if single reduction is done new cost of cycle is equal
%=![3x/5](https://tex.z-dn.net/?f=3x%2F5)
![x\left ( 1-y/100 \right )=3x/5](https://tex.z-dn.net/?f=x%5Cleft%20%28%201-y%2F100%20%5Cright%20%29%3D3x%2F5)
![\left ( 100-y \right )/100=3/5](https://tex.z-dn.net/?f=%5Cleft%20%28%20100-y%20%5Cright%20%29%2F100%3D3%2F5)
![100-y=60](https://tex.z-dn.net/?f=100-y%3D60)
%
single reduction of a cycle is 40%
Answer:
1=4(2)-7
Step-by-step explanation:
y=mx+b
b=where it crosses the y-axis
m=slope
1=4(2)-7
Answer:
57.5 degrees
Step-by-step explanation:
Assuming this is a triangle
a is adjacent is ∠B
b is opposite of ∠B
Use the inverse tangent equation: ![tan^{-1} (11/7)](https://tex.z-dn.net/?f=tan%5E%7B-1%7D%20%2811%2F7%29)
This equals to 57.52880771
Answer:
6 < x < 8
Step-by-step explanation:
The compound inequality in this instance represent the "and" condition, not the "or" condition.* We might solve it like this.
-47 > 1 -8x > -63 . . . . given
Multiply by -1:
47 < -1 +8x < 63
Add 1:
48 < 8x < 64
Divide by 8:
6 < x < 8
______
* You can tell this is the case by looking at the ends of the given statement:
-47 > -63 . . . . a true statement, so the solution set will be an intersection, not a union.