Answer
The liters of air takes in during 150 seconds is 25 liters
Step-by-step explanation:
A man takes in 5 liters of air in 30 seconds
Firstly, we need to find the rate
Given:
Volume = 5 liters
time = 30 seconds
Rate =?
Volume = rate x time
5 = rate * 30
rate = 5/30 liters / second
Find the volume of air takes in during 150 seconds at the same rate
Volume = rate * time
Volume = 5/30 * 150
Volume = 5 * 150 / 30
Volume = 25 liters
Hence, the liters of air takes in during 150 seconds is 25 liters
Answer:
12
Step-by-step explanation: we will use pathogorean theorem because there is a right triangle. a^2+b^2=c^2
We know BE=9 we need AE to find AB
You can make another triangle on the end. AD=28 - 12 (BC) = 16
16/2 = 8 so AE= 8
8^2+9^2=c^2
145=c^2
Square root of 145=c
C=12.04
Answer:2(x-3)2
Step-by-step explanation:
15.5 If you need to find 50%, you divided by 2.
Answer:This is a proportion where you set two ratios equal. Always understand the what is being asked to be solved for:How long will it take to solve 50 math problems? Let (L) equal the time in minutes to solve 50 math problems. First ratio: 30 problems/ 45minutes. Second ratio: 50 problems/LMake sure the second ratio is setup with problems over minutes. Set each ratio equal. 30/45=50/L To solve proportions cross-multiply the ratios. 30L = 45(50) to solve for L divide both sides by 30. L = 75 minutes to solve 50 problems.
Step-by-step explanation: