Answer:
5 hours
Step-by-step explanation:
subtract 390 by 215 to get 175 then divide 175/35 to get 5
Answer:
Value is 1.
Step-by-step explanation:
To find the value of 
is always equal to 1, but if zero to the power 0 is not defined.
Or simply we say that:
is always equal to 1
Here,
A non-zero number = 30 ≠0
then;
by definition:

Therefore, the value of
is 1
Answer:
6
Step-by-step explanation:
450/75= 6 hours
Step-by-step explanation:
- y=(4×2)+5
y=8+5
<u>Y=1</u><u>3</u>
2. 4=4x+5
4x=4-5
<u>4</u><u>x</u>= <u>-1</u>
4. 4
x= <u>-1</u>
4
I only know this way sorry
20=5 (-3+x)
20=-15+5x
+15. +15
_________
35=5x
__ __
5. 5
7=x