A runner moves 132m in 18s. How fast is the runner running?
2 answers:
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Answer:
Step-by-step explanation:
Given the two inequalities:
To graph them, first of all, let us write their corresponding equations:
We now find at least 2 points each which satisfy the equations to plot the graph.
Equation :
Putting x = 0, y = 1
Putting y = 0, x = .
Two points are (0, 1) and (, 0).
Equation :
Putting x = 0, y = -2
Putting y = 0, x = 1.
Two points are (0, -2) and (1, 0).
Now, let us plot them.
Let us take a point (1, 4) and check whether it satisfies the first inequality.
Which is true.
So, The shaded region will be <em>towards point (1,4).</em>
<em></em>
Let us take a point (1, 4) and check whether it satisfies the second inequality.
So, The shaded region will be <em>opposite to point (1,4).</em>
Please refer to the attached graph for the answer.
<em>No solution exists for them because there is no common shaded region</em>.
Answer:
x = 28
Step-by-step explanation:
The ratios of corresponding sides are equal, that is
=
( cross- multiply )
8(x - 7) = 168 ( divide both sides by 8 )
x - 7 = 21 ( add 7 to both sides )
x = 28