Answer:
c
Step-by-step explanation:
add all the three numbers then divid by 3
<span>a) Expressa o custo mensal C como uma função da kilometragem percorrida x, assumindo que uma relação linear descreve bem o problema.</span>
62.5 miles per hour is the speed hope this helps
Answer:
The unit rate of y per x is 9
Step-by-step explanation:
In this question, we are asked to give the unit rate of x.
To do this, we will critically look to establish the relationship between both set of values.
Looking at the values critically, we can see that the values in the first brackets, when multiplied by 4 will give the values in the second bracket. Hence we can say that the values in the second bracket are multiples of the first by 9.
First, let's find the equivalent of 1 meter to each of the US Standard choices (inches, feet, yards, miles).
1 meter = 39.37 inches = 3.28 feet = 1.09 yards = 0.00062 miles
Now, to find the metric equivalent of each of the choices, we multiply each of these by 4 (since we need to find a measurement equivalent to 4 meters), and check them against the choices.
A. 0.28 miles.
0.00062 x 4 = 0.0025
0.0025 is much smaller than 0.28, so that won't work.
B. 4.38 yards
1.09 x 4 = 4.36
4.36 is 0.02 smaller than 4.38, so it's pretty darn close.
C. 12.4 feet
3.28 x 4 = 13.12
13.12 is slightly bigger than 12.4, but it's not as close as in B.
D. 136.2 inches
39.37 x 4 = 157.48
157.48 is considerably bigger than 136.2, so that doesn't work, either.
The two that are closest are B and C, but B is closer by far.
If you round to the nearest tenth, 4.36 becomes 4.4, and 4.38 becomes 4.4
This means that B, 4.38 yards, is as equivalent a measurement as you're going to get with these choices.
Therefore the answer is B: 4.38 yards.