Have a beautiful and joyful day ahead.
Answer:
Step-by-step explanation:
-9= x -3 (add 3 to both sides of the equal sign)
-9+3 = x -3+3
-6 = x
solved :)
Solution:
Let the volume (in litres) of acids used be:
x1=amount of 25% acid
x2=amount of 40% acid
x3=3*x2=amount of 60% acid
To find out how many gram the puppy increase each day,here's what we can do:
weight of day 4 - weight of day 2
=365 - 305
=60g
To comfirm,we can use another pair
weight of day 4 - weight of day 2
=485-425
=60g
From the above,we can see that the puppy increase 60 grams each two days,meaning that it would increase 60÷2=30 gram each day.
We can then find its weight of age of 5 days:
365+30
=395g
Thus the answer is D.395
Hope it helps!