Answer:
What is your initial value? 2000
Does this function represent exponential growth or exponential decay? Exponential growth
What is the rate of growth or rate of decay? 5%
Answer:
x=-10
Step-by-step explanation:
(3x+2)/4=-7
3x+2=4×-7
3x=-28-2
3x=-30
x=-10
Answer:
Approximately 50 pounds less carbon (in CO₂) will be produced by the second auto on this trip.
Step-by-step explanation:
We have been given that the combustion of one gallon of automobile fuel produces about 5 pounds of carbon (in CO₂). Two autos are making a trip of 600 miles.
Let us find amount of fuel used by autos by dividing the total distance by their mileage.
![\text{Fuel used by 1st auto}=\frac{\text{ 600 miles}}{\frac{\text{ 20 miles}}{\text{gallon}}}](https://tex.z-dn.net/?f=%5Ctext%7BFuel%20used%20by%201st%20auto%7D%3D%5Cfrac%7B%5Ctext%7B%20600%20miles%7D%7D%7B%5Cfrac%7B%5Ctext%7B%2020%20miles%7D%7D%7B%5Ctext%7Bgallon%7D%7D%7D)
![\text{Fuel used by 1st auto}=\frac{\text{ 600 miles}}{\text{ 20 miles}}\times \text{gallon}](https://tex.z-dn.net/?f=%5Ctext%7BFuel%20used%20by%201st%20auto%7D%3D%5Cfrac%7B%5Ctext%7B%20600%20miles%7D%7D%7B%5Ctext%7B%2020%20miles%7D%7D%5Ctimes%20%5Ctext%7Bgallon%7D)
![\text{Fuel used by 1st auto}=30 \text{ gallons}](https://tex.z-dn.net/?f=%5Ctext%7BFuel%20used%20by%201st%20auto%7D%3D30%20%5Ctext%7B%20gallons%7D)
![\text{Fuel used by 2nd auto}=\frac{\text{ 600 miles}}{\frac{\text{ 30 miles}}{\text{gallon}}}](https://tex.z-dn.net/?f=%5Ctext%7BFuel%20used%20by%202nd%20auto%7D%3D%5Cfrac%7B%5Ctext%7B%20600%20miles%7D%7D%7B%5Cfrac%7B%5Ctext%7B%2030%20miles%7D%7D%7B%5Ctext%7Bgallon%7D%7D%7D)
![\text{Fuel used by 2nd auto}=\frac{\text{ 600 miles}}{\text{ 30 miles}}\times \text{gallon}](https://tex.z-dn.net/?f=%5Ctext%7BFuel%20used%20by%202nd%20auto%7D%3D%5Cfrac%7B%5Ctext%7B%20600%20miles%7D%7D%7B%5Ctext%7B%2030%20miles%7D%7D%5Ctimes%20%5Ctext%7Bgallon%7D)
![\text{Fuel used by 2nd auto}=20 \text{ gallons}](https://tex.z-dn.net/?f=%5Ctext%7BFuel%20used%20by%202nd%20auto%7D%3D20%20%5Ctext%7B%20gallons%7D)
Let us find the difference of fuel used by both autos.
![\text{Number of gallons that 2nd auto used less than 1st auto}=30-20](https://tex.z-dn.net/?f=%5Ctext%7BNumber%20of%20gallons%20that%202nd%20auto%20used%20less%20than%201st%20auto%7D%3D30-20)
![\text{Number of gallons that 2nd auto used less than 1st auto}=10](https://tex.z-dn.net/?f=%5Ctext%7BNumber%20of%20gallons%20that%202nd%20auto%20used%20less%20than%201st%20auto%7D%3D10)
Since one gallon of automobile fuel produces about 5 pounds of carbon, so 10 gallons of fuel will produces
pounds of carbon.
Since 2nd auto used 10 gallons less than 1st auto, therefore, 2nd auto will produce 50 pounds less carbon than 1st auto.
Answer:
90
Step-by-step explanation:
Actual length of the room
6 * 40
240 inches
Actual width of the room
4 * 40
160 inches
Area of the room
240 * 160
38400 inches^2
Hope this helps:D
Have a great rest of a brainly day!