7x + 20
1 answer:
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Solution:
iv) Given equation:
Since we are given two variables, we need to split the original expression into two quadratic expressions as
Factoring x first:
=
=
Factoring y now:
=
=
=
=
Therefore, the original expression becomes
Answer:
of a second
Step-by-step explanation:
We can convert each time into fractions.
11.74 is the same thing as
and 11.69 is the same thing as .
We know that 11 - 11 = 0, so we can focus on the fractions for now.
Let's subtract from
.
.
We can now simplify by dividing both the numerator and denominator by 5.
.
Hope this helped!