37/11 is correct just multiply 3*11 and add four
Answer:
1 : 5000
0.02%
Step-by-step explanation:
A solution = solute + solvent
A 2 Litre solution = (2 * 1000) = 2000 mg
Having, 400 mg of solute ;
Recall ;
1 mg = 0.001 ml
400 mg = (0.001 * 400) = 0.4 ml
The strength of the solution :
Amount of solute / Amount of solution
0.4 / 2000
As a ratio :
0.4 / 2000 = (0.4 * 10) / (2000*10) = 4 / 20000 = 1 / 5000 = 1 : 5000 (as a ratio)
0.4 / 2000
= 0.0002
(0.0002 * 100%) = 0.02% (As a percentage)
Answer:
15 business class and 12 economy class
Step-by-step explanation:
15 + 12 = 27
15 * 700 = 10500
12 * 375 = 4500
$10500 + $4500 = $15,000
B is the number of books.
She does not have to pay for 4 books, so the number of books she will pay for is b - 4.
Each book costs $75, so b - 4 books cost 75(b - 4).
75(b - 4) = 450
225 is about 200
12 is about 10.
To put the same in each vase, we divide.
200÷10=20
So the answer for the best estimate would be D, 20 flowers.