Add −4.85+(−2.54).
Responses
A. −2.31
B. −7.39
C. −6.39
D. 2.31
The sum of -4.85 and -2.54 is -7.39.
Therefore, the correct answer is B. -7.39.
Add 4.6+(−9.04).(1 point)
Responses
A. −4.44
B. 4.44
C. −13.64
D. 13.64
The sum of 4.6 and -9.04 is -4.44.
Therefore, the correct answer is A. -4.44.
Add −1310 +(−4215).(1 point)
Responses
A. −516
B. −515
C. −256
D. −51330
The sum of -1310 and -4215 is -5525.
Therefore, the correct answer is not listed in the given responses.
Add −1 3/10 +(−4 2/15).(1 point)
Responses
−516
negative 5 Start Fraction 1 over 6 End Fraction
−515
negative 5 Start Fraction 1 over 5 End Fraction
−256
negative 2 Start Fraction 5 over 6 End Fraction
−51330
negative 5 Start Fraction 13 over 30 End Fraction
To add -1 3/10 and -4 2/15, we first need to convert the mixed numbers to improper fractions:
-1 3/10 = -13/10
-4 2/15 = -62/15
Next, we add the fractions:
-13/10 + (-62/15) = -195/30 + (-124/30) = -319/30
So, the sum of -1 3/10 and -4 2/15 is -319/30.
Therefore, the correct answer is not listed in the given responses.