What is 138÷12 to the nearest cent
2 answers:
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Y has a coefficient of 1 in the first equation, so it is easiest to use that one to write an expression for y.
... y = 20 - 2x . . . . . subtract 2x
Now, this expression can be substituted for y in the second equation.
Then, using the expression for y, we find its value
... y = 20 -2·7 = 6
The solution of the equations is (x, y) = (7, 6).
Answer:
Option (c) is correct.
The distance covered by the man in 1 hour is represented by te expression miles.
Step-by-step explanation:
Given: A man walks 10 miles in x hours.
We have to choose a correct expression that represents the distance covered by the man in 1 hour.
Consider the given statement."A man walks 10 miles in x hours."
Using UNITARY METHOD,
(is a method in which we first find the value of a single unit and then multiply it with desired quantity)
Distance covered by man in x hours = 10 miles,
So distance covered by man in 1 hour = miles.
So, The distance covered by the man in 1 hour is represented by te expression miles.