Answer:
d forms a proportion
Step-by-step explanation:
3x5=15,4×5=20
so they both increase protionally
therefore they are protional
Answer:
10%
Step-by-step explanation:
Marked price of the shirt = Rs 1000
Sale price = Rs 900
Decease = (1000 - 900) Rs
= Rs 100
% decrease = decrease /marked price x 100%
That’s 100/1000 x 100%
0.1 x 100
10%
Answer:
Height of the building = 115.4 ft.
Step-by-step explanation:
Height of building = AB + 46.4 + CD + 30.5
By applying Pythagoras theorem in ΔABP,
(26)² = (10)²+ (AB)²
676 - 100 = AB²
AB² = 576
AB = 24 ft
By applying sine rule in ΔCDE,
cos(60°) = 
CD = CE × 
CD = 
CD = 14.5 ft
Total Height = 24 + 46.4 + 14.5 + 30.5
= 115.4 ft