edward’s snake is 8 centimeters shorter than jessica’s snake. jessica’s snake is 54 7/10 centimeters long…
edward’s snake is 8 centimeters shorter than jessica’s snake. jessica’s snake is 54 7/10 centimeters long. edward determines the length of his snake is 46 70/100 centimeters. why is he correct? a. eight less than 54 is 46, and 7/10 is equivalent to 70/100. b. edward’s snake is not as long as jessica’s snake. c. the sum of 46 and 8 is 54; and 7 is less than 70. d. the fraction 70/100 is not in lowest terms. in the shape shown below, some line segments are perpendicular. which of the following line segments are perpendicular? a. ag and bc b. fe and de c. fg and fe d. ab and ed
Answer
1. First - part (snake length problem)
Explanation:
Step1: Analyze integer part
To find Edward's snake length, we subtract 8 from 54 (the integer part of Jessica's snake length). $54 - 8=46$.
Step2: Analyze fraction part
The fraction part of Jessica's snake length is $\frac{7}{10}$, and we know that $\frac{7}{10}=\frac{7\times10}{10\times10}=\frac{70}{100}$. So Edward's snake length of $46\frac{70}{100}$ is correct.
Answer:
A. Eight less than 54 is 46, and $\frac{7}{10}$ is equivalent to $\frac{70}{100}$.
2. Second - part (perpendicular line - segment problem)
Explanation:
Perpendicular line - segments form a 90 - degree angle. In the given shape, $\overline{FE}$ and $\overline{DE}$ form a right - angle (90 degrees).
Answer:
B. $\overline{FE}$ and $\overline{DE}$