X+y=45
2x=3y
2(45-y)=3y
90-2y=3y
90=5y
y=18
x+y=45
x+18=45
x=27
The two numbers are 18 and 27
The amount of times expected to get a 6 is 5.
30 / 6 = 5
Q.1.1
Q 1.2
this can't be simplified.
Q. 1.3
Q.1.4
we basically use inverse functions in our daily lives all the time
to give you a more complicated example : knowing the interest rate, you have a function to calculate the cumulative value of an installment payment
functions are also used in computing
The correct answer should be 2 & 1/2 batches
2/7 + 2/7 is 4/7 and half of a batch would bring it to 5/7