Solve the proportion using cross products.

1 answer:

8 0

A.99 1
Divide the numbers
1
8
2
0
=

1
1
0
18
20
=
k
110
2018=110k
9
1
0
=

1
1
0
9
10
=
k
110
109=110k
2
Multiply all terms by the same value to eliminate fraction denominators
3
Simplify
Solution
9
9
=

99
=
k
99=k

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Answer: $\textsf{(1, 1) is NOT a solution of the inequality}$

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Given: $y \le-3x + 1$

Find: $\textsf{Determine if (1, 1) is a solution of the inequality}$

Solution: In order to determine if (1, 1) is a solution we need to plug in 1 for the x values and 1 for the y values and see if the equation evaluated to true.

Plug in the values