NightowlIt can be proven that between any two real numbers there exists a rational number. Therefore there exists a rational number r such that <span>7.7+<span>2–√</span><r<7.9+<span>2–√</span></span>By calculator we can find a rational number r that satisfies these condition, I choose 9.2. Now subtract square root 2.<span>7.7<9.2−<span>2–√</span><7.9
</span>so the answer is between 7.7 and 7.9 rational number : 7.8 <span>irrational number : 9.2 - √2</span>
1st- An irrational number is a non terminating decimal and a non repeating decimal also: Examples: a) 10.5494737891157.... is an irrational number (decimal will continue for ever b) 15.1231231213123123123.....(Not irrational because decimal are repeating for ever c) 121.1201200120001200001... (Rational because decimal go foe ever and they are not being repeated. Now we have to find an irrational number between 7.7 and 7.9 (obviously there are an infinity of such numbers: So
7.7<x<7.9.Take any number between 7.7 and 7.9, say 7.8 and add to its decimal whatever number of digits you may choose. But to be on the safe side I would advise the following (non repeated) number: 7.810 100 1000 10000 10000.....
The independent variables are the cost for one ticket and the number of student tickets. The cost of the tickets depends on the number of student tickets being purchased. The equation would be c = 7s.
First find the total without using the dicounts. then do 70×.35 which is 35% as a decimal. your answer is the dicounts but that is how much you are taking off. .35×70= 24.5 then you would do 70-24.5=45.5 then do the same for the other amount. add these two amounts together. ( 30×.25=7.5 30-7.5= 22.5) 45.5+22.5= 68 then do your first answer - 68 and that is how much is saved
