Answer:
5.2%.
Step-by-step explanation:
After 1 hour (60 / 100) * 700 = 420 gallons of beer have been exchanged.
So we have 420 gallons of 6% and 280 gallons of 4% after 1 hour.
So the strength at that time = (420* 6) + 280*4) / 700
= 5.2%.
She walks 2/4 of a mile in 1 hour
Answer:
0.00132773
Step-by-step explanation:
Answer:
x= <u>k+9</u>
4
Step-by-step explanation:
4x-9=k
add nine to each side
4x=k+9
divide each side by 4
x=<u>k+9</u>
4