The temperature at sunrise was -3*f. by noon, the temperature climbed 18 degrees. by sundown the temperature was -14*f. how much did the temperature drop between noon and sundown.

hint: integers

The temperature dropped 29 °F

Step-by-step explanation:

Temperature at sunrise =    -3 °F

      + Temperature rise = + 18    

   Temperature at noon =   15 °F

Temperature at sundown = -14 °F

   - Temperature at noon = - 15    

     Temperature change = -29 °F

The negative sign shows that the temperature dropped.

The temperature dropped by 29 °F.

The changes may be easier to see on a number line. If you start at -3 °F and increase the temperature  by 18 °F, you end up at 15 °F. If the temperature then changes to -14 °F, it has dropped by 29 °F.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

y -5 = (-1/4)(x + 8)

step-by-step explanation: