Find the sum.(3x - 4) + (12x + 10)
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The best approximation to the number of seedlings that are at least 2 inches high in the <u>entire lawn</u> is:
- D. <u>6,400</u>
To identify the total number of seedling in the entire lawn, first you must add all the seedling counted by the researchers:
- Counted seedlings = 82 + 87 + 95 + 99 + 102 + 106 + 111 + 115
- <u>Counted seedlings = 697</u>
Now, you must divide 697 in the number of regions taken by the researchers ( in this case were 8), this to obtain the average:
- Average seedlings by region =
- <u>Average seedlings by region = 87.125</u>
Now, how we know, the entire lawn has a length of 8 feet and a width of 8 feet, it means 64 regions of one feet by one feet, by this reason, we multiply the average of seedlings by the whole regions in the lawn:
- Number of seedlings in the lawn = 87.125 * 64
- <u>Number of seedlings in the lawn = 5576</u>
Taking into account the average of seedlings is 5576, the best approximates of seedlings that are at least 2 inches high in the entire lawn is <u>6400</u>.
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