Grade 11 A. Practical Investigation: Ratios
INSTRUCTIONS
1. Answer ALL the questions
2. Show all calculations (steps), diagrams, etc. you used in determining
answers.
3. Marks will be awarded for accuracy and correct conclusions.
Marks: 50
1 Solve the following equation for x in terms of y: 2-3x + 2y = 0 and hence
show that the ratio x:y is 1 : 1 or 2:1.​

answer:

step-by-step explanation:

a

step-by-step explanation:

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)