4 pupils bc 2*2=4..................................................................................................................................................................................................................................................................
There's nothing to substitute, and no solution,
until somebody gives you another equation.
The possible values of x are 3 and 7
<h3>Solving rational expressions</h3>
Given the rational expression below;
√60-8x = x - 9
Square both sides to have:
(60-8x)² = (x-9)²
60-8x = x²-18x+81
Equate to zero to have;
x²-18x+81 - 60 + 8x = 0
x² - 10x + 21 = 0
x² -3x-7x +21 = 0
x(x-3)-7(x-3) = 0
x = 3 and 7
Hence the possible values of x are 3 and 7
Learn more on rational expression here: brainly.com/question/25292194
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Answer:
4
Step-by-step explanation:
We know 100 centimeters = 1 meter.
We know the plant grows 10 cm in 1 week.
100 - 60 = 40.
40 cm remaining / 10 cm per week = 4 weeks.