Following PEMDAS
Step 1: 16+6(.5)-8
Step 2:16+3-8
Step3: 19-8
Step 4:=8
————
Step 1: 10-(3+4)
Step 2: 10-(7)
Step3: =3
Answer:
8 cm
Step-by-step explanation:
... BO/OD = AO/OC = 3/1
Written another way, this is ...
... OD : BO = 1 : 3
Now, BD = OD + BO, so we have
... BD : BO = (OD +BO) : BO = (1 +3) : 3 = 4 : 3
That is, BD = 4/3 × BO
... BD = 4/3 × 6 cm = 8 cm
