Final answer:
To find what percent of the trees in Gardner Grove Orchard are pear trees, divide the number of pear trees (18) by the total number of trees (180) and multiply by 100%, resulting in 10%. In the farmer's market question, after converting all weights to grams, Josh bought a total of 1800 grams of fruit.
Step-by-step explanation:
To calculate the percentage of pear trees in Gardner Grove Orchard, we use the formula for percentage, which is (Part/Whole)×100%. In this scenario, the 'Part' is the number of pear trees, and the 'Whole' is the total number of trees in the orchard.
So, we have 18 pear trees out of 180 total trees. The calculation would be (18/180)×100% = 10%. Hence, 10% of the trees in the orchard are pear trees.
Addressing the second part of the question about the weight of fruits bought by Josh at the farmer's market, we need to convert all quantities into the same unit, which is grams, to calculate the total weight.
1.5 kilograms of oranges = 1500 grams
150 grams of grapes (already in grams)
15,000 centigrams of apples = 150 grams (since there are 100 centigrams in a gram)
Adding them all together we get a total weight:
1500 grams (oranges) + 150 grams (grapes) + 150 grams (apples) = 1800 grams
Therefore, Josh bought 1800 grams of fruit in total at the farmer's market.