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m_a_m_a [10]
3 years ago
6

A pair of pants costs twice as much as a shirt. The total cost of 1 pair of pants and 1 shirt is $18. If s represents the cost o

f 1 shirt, which equation could you use to find the cost of 1 shirt?
Mathematics
2 answers:
pshichka [43]3 years ago
8 0

For this case we propose a system of equations:

p: Variable representing the cost of a pair of pants

s: Variable representing the cost of a shirt

A pair of pants costs twice as much as a shirt, means:

p = 2s

The total cost of 1 pair of pants and 1 shirt is $ 18:

p + s = 18

We substitute the first equation in the second:

2s + s = 18\\3s = 18\\s = \frac {18} {3}\\s = 6

Answer:

The following equation can be used:

2s + s = 18

Vadim26 [7]3 years ago
4 0

The total cost of 1 pair of pants and 1 shirt is $18 . If s represents the cost of 1 shirt, which equation could you use to find .

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