For a scientific experiment, a physicist must make sure that the temperature of metal at 0° C gets no colder than -80° C. The physicist changes the metal’s temperature at a steady rate of -4° C per hour. For how long can the physicists change the temperature?

Step-by-step explanation:

3 0

3 years ago

Which ordered pair (c, d) is the solution to the given system of linear equations?

ELEN [110]

Answer:

(-1,6)

Step-by-step explanation:

5 0

3 years ago

Two trains departed Charlotte at the same time. One train heads north at 60mph. The other train heads south at 40 mph. After 4 1

Mnenie [13.5K]

Answer:

71 miles per hour.

Step-by-step explanation:

hope it helps

7 0

3 years ago

Please help I will mark brainliest

den301095 [7]

Answer:

Choice 1) no

Choice 2) yes

Choice 3) yes

Choice 4) no

Choice 5) yes

Choice 6) no

6 0

3 years ago

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