<u>2/5 x + 1/3 x = 22</u>
First of all, I've been answering so many of these things lately that I'm
getting really tired of 'x'. Let's call the unknown number ' Q ' instead.
<u>2/5 Q + 1/3 Q = 22</u>
Multiply each side by 5 :
2Q + 5/3 Q = 110
Multiply each side by 3 :
6Q + 5Q = 330
Add the like terms on the left side:
11Q = 330
Divide each side by 11 :
<u>Q = 30</u> .
Answer should be <span>Both Fred's and Victoria's proofs are correct.</span>
Answer: 3/5
Step-by-step explanation: thats your answer.
You can Calculate the mass of magnesium sulphate obtained from 5g of magnesium.
mama giraffe: x
baby giraffe: 
= 15
= (3)15
3x + 2x = 45
5x = 45
x = 9
baby giraffe: = 
= 2(3) = 6
Answer: 6 m
