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4 years ago

11

A spinner is divided into eight equal sections. Each section is either blue or yellow. The spinner was fun 40 times. It landed o

n a yellow section 10 times. Which proportion can be used to find the number of sections, why, that could be expected to be yellow?

2 answers:

Anarel [89]4 years ago

8 0

The answer is 75%.....p(b or y)

Nikolay [14]4 years ago

4 0

10:40 because yellow goes before the total. Or it is 25%

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See Explanation

Step-by-step explanation:

Your question is poorly formatted. However, I'm able to deduce that your question involves at least 2 algebraic fractions that needs to be simplified.

So, I'll make use of the following expression:

$\frac{3n}{n + 3} + \frac{5}{n - 4}$

When you follow the steps I'm about to provide, you'll arrive at the right answer

Required

Determine an equivalent expression

$\frac{3n}{n + 3} + \frac{5}{n - 4}$

Step 1: Take L.C.M of the denominators

$LCM = (n+3)(n-4)$

Step 2: Evaluate the fractions

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Step 3: Open the brackets at the numerator

$\frac{3n}{n + 3} + \frac{5}{n - 4}$ $= \frac{3n^2-12n+5n+15}{(n+3)(n-4)}$

Step 4: Collect and evaluate like terms

$\frac{3n}{n + 3} + \frac{5}{n - 4}$ $= \frac{3n^2-7n+15}{(n+3)(n-4)}$

<em>Follow the above steps, and you'll be able to solve your question.</em>

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