from 8 a.m. to noon,the temperature rose 4F. From noon to 4p.m.,it fell 3f. From 4p.m. to 8p.m. ,it fell another 6f. At 8p.m.,the temperature was 72F.What was the temperature at 8p.m.?

At 8p.m.,the temperature was 72F

Assuming that you had a typo and are asking for the 8 AM temperature, work in reverse.

72 + 6 + 3 - 4 = ?

I hope this helps a little more. Thanks for asking.

72+6+3-4= 77

To determine the temperature at 8 p.m., we need to calculate the total change in temperature from 8 a.m. to 8 p.m.

From 8 a.m. to noon, the temperature rose by 4°F.
From noon to 4 p.m., it fell by 3°F.
From 4 p.m. to 8 p.m., it fell by an additional 6°F.

Let's start with the initial temperature at 8 a.m., which we'll call T.

From 8 a.m. to noon, the temperature rose by 4°F. So, at noon, the temperature would be T + 4°F.

From noon to 4 p.m., the temperature fell by 3°F. So, at 4 p.m., the temperature would be (T + 4°F) - 3°F = T + 1°F.

From 4 p.m. to 8 p.m., the temperature fell by another 6°F. So, at 8 p.m., the temperature would be (T + 1°F) - 6°F = T - 5°F.

Given that the temperature at 8 p.m. is 72°F, we can set up an equation:

T - 5°F = 72°F.

To find T, we need to solve for T:

T = 72°F + 5°F = 77°F.

Therefore, the temperature at 8 p.m. was 77°F.