With two number cubes, what is the probability of rolling a sum of a 9?
1 answer:
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Answer:
1/3
Step-by-step explanation:
When the equation of a line is in standard form:
ax +by = c
We can find its slope by solving for y:
by = -ax +c
y = -a/bx +c/b
The slope is the coefficient of x. The slope is -a/b.
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A perpendicular line has a slope that is the negative reciprocal of this:
slope of perpendicular line = -1/(-a/b) = b/a
In the given equation, a=3, b=1, so the slope of the perpendicular line is ...
b/a = 1/3
piece of cake, it's $0.37
all you have to do is divide $5.92 by 16 to figure out price per pound.
to check your answer multiply 0.37 by 16 and you'll get 5.92
note: if you were to divide 16 by $5.92 (inverse operation) you would be solving for pounds per each dollar, and the question asks to find what she paid for each pound not how many pounds she bought for each dollar she spent; since you're trying to figure out a certain price so you also divide by a price. I hope this makes sense