Answer: 10
<u>Step-by-step explanation:</u>
varies directly means:
Step 1: solve for k ⇒
Step 2: plug in the given value and k to solve for the missing value:
42(5) = 21(x)
2(5) = x
10 = x
Nine students Ryan’s class are wearing gray there are 30 students in his class Ryan says that 30% of his class is wearing gray i
2 answers:
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Answer:
The area of the figure is 28 units².
Step-by-step explanation:
Find the area of the full rectangle, ignoring the triangle.
Then, find the area of the triangle:
Finally, subtract:
Answer:
An exponential function
Step-by-step explanation:
So let's suppose that at 9:00 am there were 132 cars. We'll call this
On the next half an hour, let's say at 9:30, the number of cars trippled, this is:
the next half an hour, at 10:00 am, the number of cars trippled, this is:
and finaly, at 10:30am, the number of cars trippled again, so:
We can now see a pattern there which can be simplified as:
or
where:
initial number of cars
n=number of half hours after 9:00 a.m
number of cars after n number of half hours.
That function we found there is an exponential function, which represents an initial amount being multiplied by the same number several times.