Answer:
qr=1.3
Step-by-step explanation:
1 : 3 : 6
longest piece is 2.5 longer than the shortest piece.
let x be the shortest piece.
x + 2.5 is the longest piece
x/10 + 3/10 + (x+2.5)/10 = 1
x + 3 + x + 2.5 / 10 = 1
2x + 5.5 = 10
2x = 10 - 5.5
2x = 4.5
x = 4.5/2
x = 2.25 shortest piece.
x + 2.5 = 2.25 + 2.5 = 4.75 longest piece.
ratio of the 2nd piece to the 3rd piece is 3:6
2nd piece is half of the 3rd piece
4.75 x 1/2 = 2.375
1 : 3 : 6
2.25 : 2.375 : 4.75
I'm gonna do number 8 but do the SAME steps for the rest.....take the denominator multiply it by the whole number then add that answer to the numerator so now it will be 23/5×15/4 ... once u have that just multiply across but DON'T CROSS MULTIPLY multiply straight across and u'll get ur answer... answer to 8 is 345/20 now divide that answer like this.. 345÷20= 17.25
Answer:
A) trapezoid a=141 b=69
Step-by-step explanation:
It must be a trapezoid because two of the sids are not parallel. The interior angles of any quadrilateral must equal 360, and each side of a trapezoid must equal 180, so:
A) trapezoid a=141 b=69
