Answer:
B) 2x^9
Step-by-step explanation:
i hope that helps
Directly proportional, both increase/decrease, Multiple k(constant you needed to solve for)..
Inversely --one increases as the other decreases, increase the denominator & fraction gets smaller.... So
Problem:
Dirextly to X (× by X)
Inversely to Y, (÷ by Y)
Z= k X/Y
Solve, working backwards: Z =5 becomes
5 = k (X) ÷ (Y). And
X=15 and Y =9 becomes
5= k(15)/(9). Undo ÷9, ×9 both sides
45= k(15). Now undo ×15 by ÷15 both sides
45/15 = 3. So k=3, (also called your constant of variation)....and your Equation/Proportion becomes...
Z = 3X/Y
Use the new #s.... X=23, Y=14
Z= 3×23÷14 = 69/14. If they want spirochete answer divide and round to corresponding # if decimals
x = 1040/43 = $24.19 per day.
y = 10/43 = $0.23 per mile.
Answer:
negative
Step-by-step explanation:
positive * positive = positive
negative * positive = negative
negative * positive = negative
Ratio: 15:30 = 1:2
Fraction: 1/2
Percent: 50%
Decimal: 0.5
