Answer:
x2+x-4=0
Step-by-step explanation:
55d+10
55/11=5.
10/5=2
5(11)+2
Answer:
syd is 23 and dev is 69
Step-by-step explanation:
Let Dev's age be x and Syd's age be y
Since Dev is 3 times older than Syd, we may write
x
=
3
y
Since the sum of their ages is 92, we may write
x
+
y
=
92
Now replacing x with 3y, we get :
3
y
+
y
=
92
Hence
y
=
92
4
=
23
and so Syd is 23 year old.
Back substituting we get Dev is 69 years old.
Answer:
x<7.5
Step-by-step explanation:
Answer:
I guess its 2/2.
Step-by-step explanation:
