Answer:
31 mins
Step-by-step explanation:
22.7+8 3/10=31 mins
Answer:
4
Step-by-step explanation:
1. Divide total number of students by number of students per car (use remainder rather than decimal)
13/4 = 3, remainder 1
In this case, round up because no student can be left behind. 4 cars will be used.
We are asked to find ratio of two relative intensities. Let's start by rearranging formula for R:

For air-raid siren we have:

For jet engine noise we have:

To find out <span>many times greater is the relative intensity of the air-raid siren than that of the jet engine noise we need to divide these two numbers:
</span>tex] \frac{R_{1}}{R_{2}} = \frac{10^{15}}{10^{12}} =10^{3}=1000[/tex]
Answer:
A.
Step-by-step explanation:
I think it is A if not dm me and i will give another answer