Answer:
15 min
Step-by-step explanation:
Julia spends
in math.
and spends
in spelling.
Lets make
for calculation propuses.
Julia spends
doing her math and spelling homework.
And lets make 
and 
So, Julia spends
in reading.
If I divide an hour into 4 equal units, each unit equals 15 min, so 1 unit is 15 min.
Julia spends 15 min in reading.
I hope this helps you
100-y=x^2.
x= square root of 100-y
y^-1= square root of 100-x
Time = 6hours
Distance = 38.4 Km
Speed = distance /time
= 38.4/6
= 6.4 km/h
Answer:
you keep flip change so the minus becomes addition and -12 becomes positive 12 so it turns out as -5+12 which is 7
Step-by-step explanation: