Answer:
a) y does NOT vary directly with x
b) y = 2.5x -6.5
Step-by-step explanation:
If variation were direct the ratios of y to x would be constant. They are not:
6/5 ≠ 11/7
y does not vary directly with x.
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y changes by 5 from 6 to 11 when x changes by 2 from 5 to 7. Then the slope of the linear function rule is (change in y)/(change in x) = 5/2. Using a point-slope form of the equation of a line, we can write the rule as ...
y = m(x -h) +k . . . . . . . . for a line of slope m through point (h, k)
y = (5/2)(x -5) +6
y = 2.5x -6.5 . . . . . simplify
Answer:
24
Step-by-step explanation:
1. First, let's find the constant of proportionality by dividing the number of dumplings by the number of people.
2. Now that we know the constant of proportionality, let's multiply it by 6 to get the total number of dumplings.
Therefore, the answer is 24 dumplings!
Answer:
26
Step-by-step explanation:
Let x represent the missing number
Convert both fractions to improper fractions
Cross multiply
Subtract both sides by 1,575
Divide both sides by 15
x = 26
Answer:
What are the questions?
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
x 5/6 25/6 125/6
y 2 10 50
each y value is multiplied by 5
each top x value is multiplied by 5
there is a pattern so therefore it is proportional