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
Answer:
The fourth one
Step-by-step explanation:
It has no repeating x's or y's
Answer:
c = -20
Step-by-step explanation:
8/-0.4=-20.
8 = (-2/5) * 20
Hi!
2.06m + 6.13 = 17.78
First subtract 6.13 from both sides
2.06m + 6.13 - 6.13 = 17.78 - 6.13
2.06m = 11.65
Divide by 2.06 on both sides
2.06m/2.06 = 11.65/2.06
m = 5.7
Rachel can travel 5.7 miles.
Hope this helps! :)
Ratio is demonstrated by " : " sign.
Ratio of cheese: pepperoni
45:20
Simplify and divide each side by 5
9:4
A. 9:4
Hope this helps :)
