If the 3

If the temperature of a city drops 2° everyday and increases by 3° on every 5 days, how long does it take to drop to -15° from temperature +5°?

Correct answer:

n =  20 d

Step-by-step explanation:

$$\begin{gathered} t_2=+5 \\ {t}_1=-15\text{ ° } \\ \mathrm{\Delta }=t_2-t_1=5-(-15)=20\text{ ° } \\ n={\displaystyle \frac{\mathrm{\Delta }}{+3-2}}={\displaystyle \frac{20}{+3-2}}=20\text{ d} \end{gathered}$$

Try another example

Related math problems and questions:

• The temperature
  The temperature is 0 degrees. It drops 5 degrees after 1 hour and then drops 3 degrees more the next hour. What is the temperature after 6 hours?
• Temperature rise and fall
  On Friday, the temperature was 82°F. The temperature changed by –2°F on Saturday, and then it changed by 5°F on Sunday. What was the temperature on Sunday? How did the temperature change? Note we consider the mathematical problem formulated in this way to
• The temperature 10
  The temperature in a freezer is -15°C, and it increases by 3°C.
• Temperature difference
  Libya's highest temperature was recorded at 58 degrees Celsius, and the lowest was recorded at -88 degrees Celsius. What is the temperature difference?
• The temperature 5
  The temperature at 4pm was 53° Fahrenheit the temperature dropped 3° each hour from 4pm to 9pm which equation below accurately represents the temperature at 9pm
• Temperature variations
  Today's temperature was 80 degrees, and then the temperature dropped 10 degrees. Then it dropped 15 degrees again, then the next day, the temperature went up 2 degrees. What would the temperature be?
• Now is
  Now is 5°C morning. What will the temperature be if i. It rises by 12°C ii. It falls by 15°C
• Roxville
  The temperature in Roxville decreased 15 degree in five hours. What was the average decrease in temperature per hour? Write you answer as an integer.
• Temperature 5
  Temperature outside starts at 0 Fahrenheit. Over time the temperature changes at a rate of -0.6 Fahrenheit per hour. How long will it take for the temperature to reach -4.5 Fahrenheit?
• Temperature change
  The mean temperature change is -3.2°F per day for five days. What is the total change over the five day period?
• Division by zero
  Fraction 5 by 2. if 3 is added to numerator and 2 is subtracted from the denominator then the new fraction is:
• On Sunday
  On Sunday the temperature reached a high of 38° above 0. That night it dropped to 23° below 0. What is the difference between the high and low temperatures for Sunday?
• To improper fraction
  Change mixed number to improper fraction a) 1 2/15 b) -2 15/17
• Difference in temperatures
  The temperature in the number line show minus 15 degree celsius and 8 degree celsius. What is the difference between the temperatures?
• 5 2/5
  5 2/5 hours a week  mathematics,  3 3/4 hours a week   Natural sciences, 4 3/8 hours a week  Technology . how many hours does  he spend on social sciences if he spend 17 1/2 hours a week for the four subject?
• The temperature 4
  The temperature was freezing, then it doubled, then it dropped 10 degrees, and then it increased by 40 degrees. The temperature is now 16 degrees. What was the starting temperature?
• Alice 2
  Alice is swimming 2.5 hours every Saturday and 3.5 hours every Sunday. How many hours does she swim in 4 weeks?