The equation should have been written as 1.25x+1.49y=100.
The error made in the first equation was that Barbara did not include a variable next to the term 1.49. Since the ice tea is sold for $1.49 per bottle, a variable should be included to represent however many bottles of iced tea she sold.
Answer: A
Y-3 = 2(2-3) y=1
y−3=2(2−3)
Step 1: Simplify both sides of the equation.
y−3=2(2−3)
y+−3=−2
y−3=−2
Step 2: Add 3 to both sides.
y−3+3=−2+3
y=1
Step-by-step explanation: y + 5 = 2(2 + 1) y+5=2(2+1)
y=1
Suppose you add <em>x</em> oz of 10% alcohol to <em>y</em> oz of pure alcohol. Then the mixture has a total volume of <em>x</em> + <em>y</em> oz, and we want to end up with 16 oz so that
<em>x</em> + <em>y</em> = 16
For each oz of the solution 10% used, 0.1 oz of alcohol is contributed, and each oz of pure alcohol contributes 1 oz of alcohol. The mixture is supposed to have a concentration of 14%, which comes out to 0.14*16 = 2.24 oz of alcohol. Then
0.1<em> x</em> + 1 <em>y</em> = 2.24
Solve for <em>y</em> in both equations:
<em>y</em> = 16 - <em>x</em>
<em>y</em> = 2.24 - 0.1 <em>x</em>
Set them equal to one another and solve for <em>x</em>, then for <em>y</em>.
16 - <em>x</em> = 2.24 - 0.1 <em>x</em>
13.76 = 0.9 <em>x</em>
<em>x</em> = 13.76/0.9 ≈ 15.29
<em>y</em> = 16 - 15.29 ≈ 0.71
So you need about 15.29 oz of 10% alcohol and 0.71 oz of pure alcohol to get the desired mixture.
Answer:
None of those is right
But if you have to put something then try A and B
Step-by-step explanation:
Here's the right answer for each equation
A. 100
B. 1000
C. 1000
D. 10000
E. 100
So if the question was to select each equation that the number 100 makes true.
Then the answers would have been A and E
Hope this helps, have a beautiful day
Answer:
Plot a point at the y-intercept.
In your case, you will need to plot 2 (y-intercept) on the graph first.
