It's 7
Hope I helped! ( Smiles )
47 - 19 = 28
28/4 = 7
At most they can spend 7 hours
The solution is
T = (47-19)/4
T = 28/4
T = 7
I think that solution is what your teacher is asking for, i'm not certain but ik the answer should be 7 hours.
You flip the second fraction and you multiply. 1 and 2/5 or 1.4
Step-by-step explanation:
it is negative 20 I'm pre sure
B= number of beakers which there are 450
t= number of test tubes
the answer is 1.46
