Maya is researching energy costs. She made a table of the cost for different numbers of gallons of gasoline. How much will 12 ga
llon cost?
A.$7.80
B.$23.40
C. $31.20
D. not enough information
A.$7.80
B.$23.40
C. $31.20
D. not enough information
2 answers:
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Answer:
y = 3
Step-by-step explanation:
The two inner right triangles are similar, thus the ratios of corresponding sides are equal, that is
=
( cross- multiply )
y² = 63 ( take the square root of both sides )
y = =
=
×
= 3