2/3 and 8/12 are proportional but 3/14 and 8/28 aren’t
56:7=24:3
3x3=27:3
8x2=64:4
45:9=35:7
4x5=10x2
42:6=63:9
28:4=7x1
2x2=36:9
Answer:
-five sixths= -5/6
six fifths= 6/5
times= multiplication
so , -5/6 x 6/5 = -1
(both sixes get cancelled and the fives also get cancelled to get -1/1 = -1)
Answer:
Given: Quadrilateral P QR S is a rectangle.
To prove :PR= Q S
Construction : Join PR and Q S.
Proof: In Rectangle PQRS, and
→ taking two triangles PSR and Δ QRS
1. PS = Q R
2. ∠ PS R = ∠ Q RS [Each being 90°]
3. S R is common.
→ ΔP SR ≅ Δ Q RS → [Side-Angle-Side Congruency]
∴ PR =Q S [ corresponding part of congruent triangles ]
Hence proved.
12.5 kilometers per liter