80
117
169
180
448
817
=
1811 / 91
19.901 and that rounded to 2 decimal places is 19.9
-12y+14-9y=14
-21y=0
y=0, x=7
Answer:
144
Step-by-step explanation:
48 ÷ 4 (which is how many sides a square has) is 12
So 12x12 because l×w (length and width) and all sides of a square are equal
So the answer would be 144
Answer:
for a, look at my picture
b = 19.5 inches
Step-by-step explanation:
A is simple. thats my take on it, but other people coudl've drawn it differently
B is more difficult. I made triangle QRS like that so i can make a ratio.
My ratio:
QX:QY = QR:QS
8:12=13:QS
13*12 = 8*QS
156/8 = 19.5
therefore 19.5 inches