Question

If
$\frac{9}{5}$
of a number exceeds
$\frac{5}{7}$
of that

number by 70, find that number.​

Answer 1

Answer:

When we solved quadratic equations in the last section by completing the square, we took the same steps every time. By the end of the exercise set, you may have been wondering ‘isn’t there an easier way to do this?’ The answer is ‘yes.’ In this section, we will derive and use a formula to find the solution of a quadratic equation.

Step-by-step explanation:

answer is 7/8

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