At 7:00 a. m., the temperature was 8°C. What was the temperature at midnight if the temperature was 10° lower? Incorrect answer

A. - 18° C Correct answer

B. - 2° C Incorrect answer

C. 2° C Incorrect answer

D. 18° C

Question

Mathematics

Ian Gilmore

10 October, 11:27

At 7:00 a. m., the temperature was 8°C. What was the temperature at midnight if the temperature was 10° lower? Incorrect answer

A. - 18° C Correct answer

B. - 2° C Incorrect answer

C. 2° C Incorrect answer

D. 18° C

+3

Answers (1)

Know the Answer?

Zoe Parrish · Answer 1

b) - 2° C

Step-by-step explanation:

hello! To solve this problem you should remember how are the operations with negative numbers, for this the only thing we must do is make a subtraction between the initial temperature (8° C) and the negative change of temperature (10° C)

Ti = initial temperature = 8° C

ΔT = temperature change = 10° C

new temperature=Ti-ΔT

new temperature=8° C-10° C=-2° C

in conclusion the answer is - 2° C

At 7:00 a. m., the temperature was 8°C. What was the temperature at midnight if the temperature was 10° lower? Incorrect answerA. - 18° C Correct answerB. - 2° C Incorrect answerC. 2° C Incorrect answerD. 18° C

At 7:00 a. m., the temperature was 8°C. What was the temperature at midnight if the temperature was 10° lower? Incorrect answer

A. - 18° C Correct answer

B. - 2° C Incorrect answer

C. 2° C Incorrect answer

D. 18° C