Answer:

Step-by-step explanation:
Let
x-----> the number of shirts
we know that
The equation of the cost is equal to

The equation of the sell is equal to

The equation of the profit is equal to

substitute the values

Answer: im guessing you need the amount of compound b
Step-by-step explanation:
1 think out problem
compound A =222m compound B=3 milliliters of compound A used for every 2 milliliters of compound B
write compound B as an equation which is:
a=3+2b
compound a equation is: a=222
to continue you have to make compound B equation equal b
a=3+2b
-2b -2b
a-2b=3
-a -a
-2b/-2=3/-2-a/-2
b= -3/2+a/2
i am working on the substitution method: so now you substitute variables
problems are: b=-3/2+a/2 and a=222
substute a for a: b=-3/2+222/2
b=109.5
a=222
<u>compound A=222</u>
<u>compound B=109.5</u>
<u>add both for final answer or whatever: 109.5+222= 331.5</u>
<em>sorry for the long complicated answer hope you understand. i tried my best it should be right. sorry if my answer is wrong. </em>
To find 70% percent of a number, multiply the number by 0.7. in this instance , 0.7 x 15= 10.5 .therefore, 70 percent of 15 is equal to 10.5