We let x = pounds of alloy that is 15% tin
The problem is modeled by the equation:
0.11(30) = 0.15x + 0.09(30-x)
The equation means that the amount of tin does not change. Also, the amount of alloy (total weight - weight of 15% alloy) is (30-x).
Solving for x:
3.3 = 0.15x +2.7 - 0.09x
.06x = 0.6
x = 10 lbs
30-10 = 20 lbs
<span>10 lbs. of the 15% alloy and 20 lbs. of the 9% alloy</span>
Answer:
12
Step-by-step explanation:
Convert the 3 liters into milliliters and then divide it normally or in the fraction way
Simple...
You have: The surf instructor has an initial fee of $12 anything after that is $8 per hour...
Using y=mx+b (Where m is the slope and b is the y-intercept)
y=8x+12
As we can see the y-intercept is located at (0,12)
If we wanted to actually see the graph then plug in some points for your graph-->>>
y=8(1)+12 (x=1)
y=8+12
y=20
(1,20)
y=8(2)+12 (x=2)
y=16+12
y=28
(2,28)
y=8(3)+12 (x=3)
y=24+12
y=36
(3,36)
So on and so forth....
Thus, your answer.
Answer:
7.29 inches
Step-by-step explanation:
The lines are parallel by the alternate exterior angle converse theorem
