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Pie
3 years ago
11

A local car dealership sells Buicks and Hondas. The following data shows the number of buyers this month according to the brand

of car they purchased as well as their age group.Age Buick HondaUnder 40 years old 6 17 40 years or older 19 8 What is the percentage of buyers 40 years or older and purchased a​Honda?
Mathematics
1 answer:
Lina20 [59]3 years ago
8 0

Answer:

16%

Step-by-step explanation:

The data provided on brand purchased by age group is.

\begin{array}{ccc}Age&Buick&Honda\\Under\ 40&6&17\\40\ or\ older&19&8\end{array}

A total of 50 cars were sold this month.

Since the number of buyers 40 years or older that purchased a ​Honda is 8, the percentage is:

P=\frac{8}{50}=0.16=16\%

16% of buyers were 40 years or older and purchased a​ Honda.

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QUESTION 4

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We put equation (1) into equation (2) to obtain,

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Simplify to get,

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y = 5(2) - 7

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The solution is

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The given system of linear equations are

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We make y the subject in equation (1) to get,

y = 4x + 6....(3)

Put equation (3) into equation (2) to get,

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We expand to get,

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We group like terms to get,

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This implies that,

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We divide both sides by -9 to get,

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The given equations are,

-7x-2y=-13...(1)

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x-2y=-13...(2)

Make x the subject in equation (2) to get,

x = 2y - 13...(3)

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Let

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Subtract these two equations:

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