The answer to this question is 3 19/20
Answer:
c
Step-by-step explanation:
if its talking about what ones a factor or moltiple of 20 then c if not then i dont know
Plugging in the numbers 7x - 2y = 39 fitted and made sense
You could understand the ration as parts: the total number of parts was 3+7=10.
So girls were 3/10 parts and boys 7/10 parts. The difference was 7-3=4 parts. this difference is equal to 360, so each part is 90 (4*90 =360).
so girls are "3 parts" and each part is 90, then the number of girls is 3*90=270.
Well since the triangle is split into 2 triangles and they both are the same size so BD on the bottom is 15 which means naturally BC must be 30. Five I'm not sure about
