2. It was noon on a cold December day in Tampa: 16°C. Detective Taylor arrived at the crime scene to find the
sergeant leaning over the body. The sergeant said there
were several suspects. If they knew the exact time of
death, then they could narrow the list. Detective Taylor
took out a thermometer and measured the temperature
of the body: 34.5°C. He then left for lunch. Upon returning
at 1:00 P. M., he found the body temperature to be
33.7°C. When did the murder occur? [Hint: Normal body
temperature is 37°C.

4 puzzles in 3 hours

step-by-step explanation:

the correct answer is d

hope this

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -