Answer:
Step-by-step explanation:
recall for a line whose equation is
y = mx + b,
the slope of this line is m
the slope of a line that is perpendicular to this line is -
in this case,
m = -
hence -=
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Answer:
42
Step-by-step explanation:
the 2 part of the ratio refers to 14 girls , then
14 ÷ 2 = 7 ← value of 1 part of the ratio , so
4 parts = 4 × 7 = 28 ← number of boys
total members = 14 + 28 = 42