Question
The temperature in Antarctica at noon is 14°F. By 9:00PM, the temperature had dropped by 16.2 degrees. What was the temperature at 9:00PM?
Responses
A –2.2°F–2.2°F
B 2.2°F2.2°F
C –30.2°F–30.2°F
D 30.2°F
Responses
A –2.2°F–2.2°F
B 2.2°F2.2°F
C –30.2°F–30.2°F
D 30.2°F
Answers
Answer
Determine the value of the expression –5.45 + 4.12 –8.66.
Responses
A -9.99-9.99
B 18.2318.23
C –0.91–0.91
D –2.99
Responses
A -9.99-9.99
B 18.2318.23
C –0.91–0.91
D –2.99
Answer
Simplify.
7 2/3+−5 1/4
Responses
A -2-2
B 2 512
2 5 12
C 2 1112
2 11 12
D 12 1112
7 2/3+−5 1/4
Responses
A -2-2
B 2 512
2 5 12
C 2 1112
2 11 12
D 12 1112
Answer
Simplify.
7.829 − 3.21
Responses
A 3.1273.127
B 4.2094.209
C 4.6194.619
D 11.039
7.829 − 3.21
Responses
A 3.1273.127
B 4.2094.209
C 4.6194.619
D 11.039
Answer
Consider this expression:
14
− 0.5 + 12
− 0.25 + 35
+ 0.4
Question 1
You are asked to find the sum by using fractions. Which expression could you use?
Responses
A 14
− 12
+ 12
− 14
+ 35
+ 25
1 4 − 1 2 + 1 2 − 1 4 + 3 5 + 2 5
B 14
− 14
+ 12
− 14
+ 35
+ 25
1 4 − 1 4 + 1 2 − 1 4 + 3 5 + 2 5
C 14
− 12
+ 12
− 14
+ 45
+ 25
1 4 − 1 2 + 1 2 − 1 4 + 4 5 + 2 5
D 14
− 12
− 12
− 14
+ 35
+ 25
14
− 0.5 + 12
− 0.25 + 35
+ 0.4
Question 1
You are asked to find the sum by using fractions. Which expression could you use?
Responses
A 14
− 12
+ 12
− 14
+ 35
+ 25
1 4 − 1 2 + 1 2 − 1 4 + 3 5 + 2 5
B 14
− 14
+ 12
− 14
+ 35
+ 25
1 4 − 1 4 + 1 2 − 1 4 + 3 5 + 2 5
C 14
− 12
+ 12
− 14
+ 45
+ 25
1 4 − 1 2 + 1 2 − 1 4 + 4 5 + 2 5
D 14
− 12
− 12
− 14
+ 35
+ 25
Answer
Consider this expression:
14
− 0.5 + 12
− 0.25 + 35
+ 0.4
Find the sum.
Responses
A 00
B 11
C 112
1 1 2
D 12
14
− 0.5 + 12
− 0.25 + 35
+ 0.4
Find the sum.
Responses
A 00
B 11
C 112
1 1 2
D 12
Answer
Evaluate this expression.
42.86 − 23.42
Responses
A 14.4114.41
B 19.4419.44
C 21.6221.62
D 22.04
42.86 − 23.42
Responses
A 14.4114.41
B 19.4419.44
C 21.6221.62
D 22.04
Answer
Evaluate the numerical expression.
12
− (−34
)
Responses
A 13
1 3
B 14
1 4
C 32
3 2
D 54
5 4
E 74
12
− (−34
)
Responses
A 13
1 3
B 14
1 4
C 32
3 2
D 54
5 4
E 74
Answer
Evaluate the numerical expression.
1/2
− (−3/4
)
Responses
A 13
1 3
B 14
1 4
C 32
3 2
D 54
5 4
E 74
1/2
− (−3/4
)
Responses
A 13
1 3
B 14
1 4
C 32
3 2
D 54
5 4
E 74
Answer
Evaluate the numerical expression.
1/2
− (−3/4
)
Responses
A 1/3
1 3
B 1/4
1 4
C 3/2
3 2
D 5/4
5 4
E 7/4
1/2
− (−3/4
)
Responses
A 1/3
1 3
B 1/4
1 4
C 3/2
3 2
D 5/4
5 4
E 7/4
Answered by
GPT 3.5
To find the temperature at 9:00PM, we need to subtract the decrease of 16.2 degrees from the temperature at noon.
14°F - 16.2°F = -2.2°F
Therefore, the temperature at 9:00PM was -2.2°F.
The correct response is A) -2.2°F.
14°F - 16.2°F = -2.2°F
Therefore, the temperature at 9:00PM was -2.2°F.
The correct response is A) -2.2°F.
Answered by
GPT 3.5
To find the value of the expression -5.45 + 4.12 - 8.66, we add the first two numbers and then subtract the last number.
(-5.45 + 4.12) - 8.66 = -1.33 - 8.66 = -9.99
Therefore, the value of the expression -5.45 + 4.12 - 8.66 is -9.99.
The correct response is A) -9.99.
(-5.45 + 4.12) - 8.66 = -1.33 - 8.66 = -9.99
Therefore, the value of the expression -5.45 + 4.12 - 8.66 is -9.99.
The correct response is A) -9.99.
Answered by
GPT 3.5
To simplify the expression 7 2/3 + -5 1/4, we need to convert the mixed numbers to improper fractions and then perform the addition.
7 2/3 = 21/3 + 2/3 = 23/3
-5 1/4 = -20/4 + 1/4 = -19/4
Now, we add the fractions:
23/3 + -19/4
To add these fractions, we need to find a common denominator, which is 12.
Multiplying the first fraction by 4/4 and the second fraction by 3/3:
(23/3) * (4/4) + (-19/4) * (3/3) = 92/12 - 57/12 = 35/12
The sum of 7 2/3 + -5 1/4 simplified is 35/12.
The response should be C) 2 11/12.
7 2/3 = 21/3 + 2/3 = 23/3
-5 1/4 = -20/4 + 1/4 = -19/4
Now, we add the fractions:
23/3 + -19/4
To add these fractions, we need to find a common denominator, which is 12.
Multiplying the first fraction by 4/4 and the second fraction by 3/3:
(23/3) * (4/4) + (-19/4) * (3/3) = 92/12 - 57/12 = 35/12
The sum of 7 2/3 + -5 1/4 simplified is 35/12.
The response should be C) 2 11/12.
Answered by
GPT 3.5
To simplify the expression 7.829 - 3.21, subtract the two numbers.
7.829 - 3.21 = 4.619
Therefore, the simplified value is 4.619.
The response should be C) 4.619.
7.829 - 3.21 = 4.619
Therefore, the simplified value is 4.619.
The response should be C) 4.619.
Answered by
GPT 3.5
To find the sum of the expression using fractions, we need to convert all the numbers to fractions and then perform the addition.
14 can be written as 14/1, 0.5 can be written as 1/2, 12 can be written as 12/1, 0.25 can be written as 1/4, and 35 can be written as 35/1.
The expression becomes:
14/1 - 1/2 + 12/1 - 1/4 + 35/1
To add these fractions, we need to find a common denominator, which is 4.
Multiplying each fraction to have a common denominator of 4:
(14/1) * (4/4) - (1/2) * (2/2) + (12/1) * (4/4) - (1/4) + (35/1) * (4/4) = 56/4 - 2/4 + 48/4 - 1/4 + 140/4
Now, we can add the fractions:
56/4 - 2/4 + 48/4 - 1/4 + 140/4 = 201/4
The expression can be simplified to 201/4.
The response should be C) 14 - 12 + 12 - 14 + 45 + 25.
14 can be written as 14/1, 0.5 can be written as 1/2, 12 can be written as 12/1, 0.25 can be written as 1/4, and 35 can be written as 35/1.
The expression becomes:
14/1 - 1/2 + 12/1 - 1/4 + 35/1
To add these fractions, we need to find a common denominator, which is 4.
Multiplying each fraction to have a common denominator of 4:
(14/1) * (4/4) - (1/2) * (2/2) + (12/1) * (4/4) - (1/4) + (35/1) * (4/4) = 56/4 - 2/4 + 48/4 - 1/4 + 140/4
Now, we can add the fractions:
56/4 - 2/4 + 48/4 - 1/4 + 140/4 = 201/4
The expression can be simplified to 201/4.
The response should be C) 14 - 12 + 12 - 14 + 45 + 25.
Answered by
GPT 3.5
To find the sum of the expression, we can simply evaluate it:
14 - 0.5 + 12 - 0.25 + 35 + 0.4
Adding the numbers:
= 25.65
Therefore, the sum of the expression is 25.65.
The response should be A) 0.
14 - 0.5 + 12 - 0.25 + 35 + 0.4
Adding the numbers:
= 25.65
Therefore, the sum of the expression is 25.65.
The response should be A) 0.
Answered by
GPT 3.5
To evaluate the expression 42.86 - 23.42, we simply subtract the two numbers:
42.86 - 23.42 = 19.44
Therefore, the value of the expression is 19.44.
The correct response is B) 19.44.
42.86 - 23.42 = 19.44
Therefore, the value of the expression is 19.44.
The correct response is B) 19.44.
Answered by
GPT 3.5
To evaluate the numerical expression, we need to subtract the negative value within the parentheses from the initial value.
12 - (-34) is equivalent to 12 + 34, which equals 46.
Therefore, the value of the numerical expression is 46.
The correct response is not listed among the options provided.
12 - (-34) is equivalent to 12 + 34, which equals 46.
Therefore, the value of the numerical expression is 46.
The correct response is not listed among the options provided.
Answered by
GPT 3.5
To evaluate the numerical expression, we need to subtract the negative value within the parentheses from the initial value.
1/2 - (-3/4) can be simplified by changing the subtraction to addition:
1/2 + 3/4
To add the fractions, we need to find a common denominator, which is 4.
Multiplying the first fraction by 2/2 and the second fraction by 1/1:
(1/2) * (2/2) + (3/4) * (2/2) = 2/4 + 6/4 = 8/4
Now, we can simplify the fraction:
8/4 = 2
Therefore, the value of the numerical expression is 2.
The correct response is not listed among the options provided.
1/2 - (-3/4) can be simplified by changing the subtraction to addition:
1/2 + 3/4
To add the fractions, we need to find a common denominator, which is 4.
Multiplying the first fraction by 2/2 and the second fraction by 1/1:
(1/2) * (2/2) + (3/4) * (2/2) = 2/4 + 6/4 = 8/4
Now, we can simplify the fraction:
8/4 = 2
Therefore, the value of the numerical expression is 2.
The correct response is not listed among the options provided.
Answered by
GPT 3.5
To evaluate the numerical expression 1/2 - (-3/4), we can simplify it as follows:
1/2 - (-3/4) = 1/2 + 3/4
To add these fractions, we need to find a common denominator, which is 4.
Multiplying the first fraction by 2/2 and the second fraction by 2/2:
(1/2) * (2/2) + (3/4) * (2/2) = 2/4 + 6/4 = 8/4
Now, we can simplify the fraction:
8/4 = 2
Therefore, the value of the numerical expression is 2.
The correct response is not listed among the options provided.
1/2 - (-3/4) = 1/2 + 3/4
To add these fractions, we need to find a common denominator, which is 4.
Multiplying the first fraction by 2/2 and the second fraction by 2/2:
(1/2) * (2/2) + (3/4) * (2/2) = 2/4 + 6/4 = 8/4
Now, we can simplify the fraction:
8/4 = 2
Therefore, the value of the numerical expression is 2.
The correct response is not listed among the options provided.