It currently costs $11.75 to get a general admissions ticket to see a movie at the movie theater. it cost $7.25 in 2010. estimate the percent increase to see a movie from 2010 to 2017.

Remark

That's quite a jump isn't it? The easiest way to do this is to find the fractional increase and change that to a percent.

Solution

7.25  * x = 11.75   Divide by 7.25

x = 11.75 / 7.25

x = 1.621

But the question says what is the % increase. That means you have to multiply 7.25 by something to get what 11.25

In all, you have to subtract 1 which gives 0.621

So % increase is 0.621 * 100% = 62.1%

Comment

We have to try this out.

7.25 * 62.1/100 = 4.50

7.25 + 4.50 = 11.75 just as it should.

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this