A parasail is 1/20 of a meter above the water. Then, after 10 minutes, the parasail is 1/50 of a meter above the water. What is the change in height?(1 point)
Responses
1/20 meter
Start Fraction 1 over 20 End Fraction meter
3/100 meter
Start Fraction 3 over 100 End Fraction meter
1/50 meter
Start Fraction 1 over 50 End Fraction meter
7/100 meter
Start Fraction 7 over 100 End Fraction meter
The change in height is 1/20 meter - 1/50 meter = 3/100 meter. Therefore, the correct answer is:
Start Fraction 3 over 100 End Fraction meter
Which expression shows x and its opposite are 0?(1 point)
Responses
x+(1x)=0
x plus left parenthesis Start Fraction 1 over x End Fraction right parenthesis equals 0
x+(−1x)=0
x plus left parenthesis negative Start Fraction 1 over x End Fraction right parenthesis equals 0
x+(−x)=0
x plus left parenthesis negative x right parenthesis equals 0
x+x=0
The expression that shows x and its opposite are 0 is x+(−x)=0. Therefore, the correct answer is:
x+(−x)=0
Which expression correctly shows the sum of opposite numbers?(1 point)
Responses
(−25)+(−25)=−50
left parenthesis negative 25 right parenthesis plus left parenthesis negative 25 right parenthesis equals negative 50
(−25)+(−25)=0
left parenthesis negative 25 right parenthesis plus left parenthesis negative 25 right parenthesis equals 0
(−25)+25=0
left parenthesis negative 25 right parenthesis plus 25 equals 0
(−25)+25=50
The expression that correctly shows the sum of opposite numbers is (−25)+(25)=0. Therefore, the correct answer is:
(−25)+25=0
Which situation describes opposite quantities that when combined would equal 0?(1 point)
Responses
A family rides their bikes four miles due north from home. Then, they ride their bikes four miles due west. How far is the family from home?
A family rides their bikes four miles due north from home. Then, they ride their bikes four miles due west. How far is the family from home?
A family rides their bikes four miles due east from home. Then, they ride their bikes four miles due west. How far is the family from home?
A family rides their bikes four miles due east from home. Then, they ride their bikes four miles due west. How far is the family from home?
A family rides their bikes four miles due east from home. Then, they ride their bikes four miles due south. How far is the family from home?
A family rides their bikes four miles due east from home. Then, they ride their bikes four miles due south. How far is the family from home?
A family rides their bikes four miles due north from home. Then, they ride their bikes four miles due east. How far is the family from home?
The situation that describes opposite quantities that, when combined, would equal 0 is:
A family rides their bikes four miles due north from home. Then, they ride their bikes four miles due south. How far is the family from home?
In this situation, the family initially moves four miles north and then moves back four miles south, resulting in a net displacement of 0. Therefore, the correct answer is:
A family rides their bikes four miles due north from home. Then, they ride their bikes four miles due south. How far is the family from home?
Which expression shows x and its opposite are 0?(1 point)
Responses
x+(1x)=0
x plus left parenthesis Start Fraction 1 over x End Fraction right parenthesis equals 0
x+(−x)=0
x plus left parenthesis negative x right parenthesis equals 0
x+x=0
x plus x equals 0
x+(−1x)=0
x plus left parenthesis negative Start Fraction 1 over x End Fraction right parenthesis equals 0
The expression that shows x and its opposite are 0 is x+(−x)=0. Therefore, the correct answer is:
x+(−x)=0
Which expression correctly shows the sum of opposite numbers?(1 point)
Responses
(−25)+25=50
left parenthesis negative 25 right parenthesis plus 25 equals 50
(−25)+25=0
left parenthesis negative 25 right parenthesis plus 25 equals 0
(−25)+(−25)=−50
left parenthesis negative 25 right parenthesis plus left parenthesis negative 25 right parenthesis equals negative 50
(−25)+(−25)=0