I really need help!! (can you show step by step guide? (
1 answer:
Answer:
Look below
Step-by-step explanation:
(i) Sharon is not correct because in the first bag, the proportion is of red counters to yellow counters.
In the second bag, the proportion is of red counters to all the counters in the bag. Therefore the proportions are not the same.
(ii) Let x be the total amount of counters (in each bag)...
Then the amount of red counters would be
And the amount of yellow counters would be
For the second bag, the amount of red counters would be
And the amount of yellow counters would be
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Since you already have the radius (7.53), you must find the area of the circle and subtract the area of the square from that. So, you use the formula A = r^2 where r is 7.53. From there, you get about 178.1311 square cm. Then, knowing the diagonal (7.53 * 2 or 14.06), you get the side length to be about 10.65. Squaring that, we get 113.4225. Subtracting, we get the answer to be about 64.7 square centimeters.