Farmer Rex planted 48 rows each having 30 corn trees.
a) How many corn trees did he plant?
b) 1006 plants grew. What percentage of the plants did not grow?
48 * 30 = ?
1440
Yes.
1440 - 1006 = 434
100 * (434/1440) = ____%
part b =30.1%
Right.
To solve these problems, we need to use basic arithmetic operations such as addition, multiplication, and subtraction. Let's break down each question and find the solutions step by step:
a) How many corn trees did Farmer Rex plant?
To solve this question, we need to multiply the number of rows by the number of corn trees in each row.
Number of rows = 48
Number of corn trees in each row = 30
Therefore, the total number of corn trees planted can be found by multiplying 48 by 30:
Total number of corn trees = 48 * 30 = 1440
So Farmer Rex planted 1440 corn trees.
b) 1006 plants grew. What percentage of the plants did not grow?
To find the percentage of plants that did not grow, we need to compare the number of plants that did not grow to the total number of plants.
Total number of plants = 1440 (as calculated in part a)
Number of plants that grew = 1006
To find the number of plants that did not grow, we can subtract the number of plants that grew from the total number of plants:
Number of plants that did not grow = Total number of plants - Number of plants that grew
= 1440 - 1006
= 434
To find the percentage of plants that did not grow, we divide the number of plants that did not grow by the total number of plants, and then multiply by 100:
Percentage of plants that did not grow = (Number of plants that did not grow / Total number of plants) * 100
= (434 / 1440) * 100
≈ 30.14%
So approximately 30.14% of the plants did not grow.