Answer:
225 inches²
Step-by-step explanation:
Let the length be l and width be w
Condition 1
2l+2w=68 (Perimeter=68)--------(i)
Condition 2
l=3w-2 ---------(ii)
Putting equation (ii) in (i)
2(3w-2)+2w=68
6w-4+2w=68
8w-4=68
8w=68+4
8w=72
dividing both sides by 8
w=9 inches
now putting w=9 in (ii)
l=3(9)-2
l=27-2
l=25 inches
Now
Area of rectangle = l × w
=9 × 25
=225 inches²
Answer: Length = 25 in., width = 9 in.
Step-by-step explanation:
took the quiz in K12
Answer:
The new volume is 1.63 L
Step-by-step explanation:
A tire pump has a volume of 1.5 L, while the temperature is 5 °C When the temperature changes to 30 °C, the volume will change as well.
The pressure remains constant.
Since the pressure is constant we can use the following formula:
V1/T1 = V2/T2
V1 = the initial volume = 1.5L
T1 = the initial temperature = 5 °C = 273.15 + 5 = 278.15 K
V2 = the final volume = TO BE DETERMINED
T2 = the final temperature = 30 °C = 273.15 + 30 = 303.15 K
1.5L/ 278.15 Kelvin = V2/303.15 K
V2 = (1.50L * 303.15 Kelvin) / 278.15 Kelvin = 1.63 L
When the temperature increased from 5°C to 30°C, the volume will change to 1.63 L