Answer:
9 minutes
Step-by-step explanation:
(2 min(60 s/min)) / 30 test = 4 s/test
135 test(4 s/test) = 540 s
540s / 60 s/min = 9 min
Answer:
All angles in each triangle are less than 180°
It is different from how long you had did it and you are using a way more complicated system than before.
Step-by-step explanation:
-(3x+y=32)
3x-2y=17
-3x-y=-32
3x-2y=17
-3y=-15
y=5
3x+(5)=32
-5. -5
3x=27
x=9
Answer:
x=9
y=5
First step would be using this logarithm rule

on right side.
Hope this helps.