Answer:
33+15w=3w-w+4w
33+15w - 15w=3w-w+4w -15w
33 = 2w + 4w -15w
33 = 6w -15w
33 = -9w
33/9 = -9/9w
3.66 = w
Step-by-step explanation:
33+15w=3w-w+4w
33+15w - 15w=3w-w+4w -15w
33 = 2w + 4w -15w
33 = 6w -15w
33 = -9w
33/9 = -9/9w
3.66 = w
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:
ask an adult, about the situation
Step-by-step explanation:
Answer:
rectangles are similar figures, thus if scaled copies of each other then the ratios of corresponding sides must be equal
compare ratios of lengths and widths
rectangles A and B
k = = ← ratio of lengths
k = = ← ratio of widths
scale factors are equivalent, hence rectangle A is a scaled copy of B
rectangles C and B
k = = ← ratio of lengths
k = = ← ratio of width
scale factors (k ) are not equal, hence C is not a scaled copy of B
rectangles A and C
k = = ← ratio of lengths
k = ← ratio of widths
the scale factors are not equal hence A is not a scaled copy of C
Step-by-step explanation:
The lowest number is 2/1 or 2.
reduce 8/4 to 4/2 which can be reduced to 2/1
