Answer:
yes
Step-by-step explanation:
Well the square root of 72 is 8.485 and the square root of 45 is 6.708. hope this helps :)
Try, please, this:
1) Imagine, that pharmacist used 'x' gr. of 40% solution and 'y' of 70% solution.
Together (20 gr. of 52% sol.) it will be x+y=20.
2) From other side, the pharmacist combined 40x and 70y gramms, after obtaining together it is 52(x+y) gramms. In other words 40x+70y=52(x+y)
3)

Answer: 8 gr. of 70% solution and 12 gr. of 40%.
Answer:
15 = 9 + 5j
Step-by-step explanation:
When you want to make words become an equation, the word <em>is</em><em> </em>usually means <em>= </em>and <em>more</em><em> </em>usually means <em>+</em>.
In this case, we have 15 is 9 more than 5j.
We can rewrite this as 15 = 9 + 5j.
Answer:
3.600
Step-by-step explanation:
0.25(x+1.6)+5x=18
Open the bracket first
0.25x+0.72+5x=18
Collect like terms
0.25x+5x=18-0.72
5.25x=18.72
Divide both sides by 5.25
x=3.566~3.600(nearest hundredth)