Let's assign some random values to it, and say 1 unit of petroleum costs 100 bitcoins, because we all know bitcoins are the best currency :P
If the price goes up by 10%, it is now 100*1.1 = 110bitcoins for 1 unit.
However he's only getting 0.9 units now, so multiplying 110 by 0.9 gives us 99 bitcoins. His petroleum bill used to be 100 (which is why I picked 100 as it's easier), and now it is 99. Therefore his petroleum bill has reduced by 1%
Answer: $142.35. If you are talking about a total, that would be $872.35.
Step-by-step explanation: 6.5% of $730 is $47.45. Multiply this by 3 and you get $142.35.
Hope this helps!
Answer: 7 root 3 or simplified = 12.12435565 = 12.12 (2 d.p)
Step-by-step explanation:
tan(30) = 7 / x
x= 7/ tan(30)
x= 7 root 3
Answer:
y=3x+1
Step-by-step explanation:
the y-value increases by 3 each time the x-value increases by 1, so the slope is 3. When the x-value is 0, the y-value is 1, so the y-intercept is 1. The equation is represented as y=mx+b, where m is the slope and b is the y-intercept, so substitute the numbers in and you get y=3x+1
