Work in amount of pure acid let x = gallons of pure acid required.
then we have the equation:-
x + 55(0.6) = 0.80(x + 55)
x + 33 = 0.80x + 44
0.20x = 11
x = 11/0.2 = 55 gallons answer
The value of y is am-z/7
<h3>How to calculate the value of y ?</h3>
The expression is given as follows
3y +z= am-4y
The first step is to collect the like terms in both sides, this way the numbers that both have y as their coefficient will be on the same side
3y + 4y= am-z
y(3+4)= am -z
7y= am-z
Divide both sides by the coefficient of y which is 7
7y/7= am-z/7
y= am-z/7
Hence the value of y in the expression is am-z/7
Read more on expression here
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Answer:
See below
Step-by-step explanation:
The formula for calculating percent is
% = (cost of item/total cost) × 100 %
% = (cost of item/1875) × 100 %
% = (cost of item/18.75) %
You can use the same formula to calculate the percent for each item in the budget. For example,
Housing: % = 420/18.75 = 22 %
You can do this for each budget item and get the table below.
You might have to ask the question again, i’m jot sure what exactly the question requires