Question

X=7-3 and y = 6/19 evaluate (a) xy and (b) x divide y

Answer 1

a) 1.58

b) 15.9

You can also leave it on the form of fraction.

Answer 2

With the values of x and y, I will evaluate the little expressions, which, in this case, are xy and x/y.

So I'll start with the first one, xy. The question clearly states that x = 7/3 and y = 6/19, so I stick this into the expression, and it gives me

`(7)/(3) \cdot(6)/(19)`

7 is hereupon multiplied by 6, and 3 is hereupon multiplied by 19:

`(7\cdot6)/(3\cdot19)`

`(42)/(57)`

Divide by 3:
`(42/ 3)/(57 / 3) =(14)/(19)`

This cannot be simplified further, so we leave the answer as it is (14/19)

In the second one, x/y, we do the same thing, only this time, I am going to divide:

`(7)/(3) /(6)/(19)`

Rewrite this as

`(7)/(3) \cdot(19)/(6)`

Multiply:

`(7\cdot19)/(3\cdot6)`

`(133)/(18)`

The answer to xy is 14/19; the answer to x/y is 133/18.