Answer:

Step-by-step explanation:
We can use substitution to find the value of
:




Hope this helps :)
5/11 because if you simplify starting at 40/88 you get 5/11
Your molarity would be 0.975 M HCl because it’s moles of solute divided by liters of solvent
Answer:
60%
Step-by-step explanation:
percent of green marbles = (total number of green marbles / total number of marbles in the bag) x 100
total number of marbles in the bag = 30 + 20 = 50
30 / 50 x 100 = 60%
Perimeter: all the sides added together, so that would be 1/2+1/2+3/4+3/4, which is 2 and a half feet
Area: the two side lengths multiplied, so 1/2*3/4, which is 3/8 feet squared