12 5/25 = 12 1/5. Hope it helps you!
Answer:
Step-by-step explanation:
Since the two triangles are similar, you can use proportions to solve for the value of
Now, just multiply 4 and 12.
Then divide that by 3.
Therefore, .
I assume that this is a system of equations so I'll use the substitution method.
Make one of the equations equal an isolated variable and since x is already isolated just add -3y on both sides.
x-3y=-24
+3y +3y
x=3y-24
Substitute that in for the first equation.
2(3y-24)+9y=27
6y-48+9y=27
15y-48=27
+48 +48
------------------
15y=75
----- ----
15 15
y=5
Substitute y in the other equation and find x
x-3(5)=-24
x-15=-24
+15 +15
--------------
x=-9
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Sharon's revenue was
25×$3 = $75
The difference between her revenue and her cost was
$75 - 10 = $65
Sharon made $65 profit on bracelet sales.