Answer:
First, transform the given equation into the slope intercept form.
-5x + 3y >= 9
3y >= 5x + 9
y >= 5/3x + 3
Then graph the line y = 5/3x + 3. Draw a solid line with y intercept 3 and slope of 5/3.
Finally, shade everything that is above the line.
This would be a proportion:
7 4*7
---- , ------- NOTICE THAT 4 IS THE MULTIPLIER IN BOTH CASES
16 4*8
BUT
7 4*7
---- , ------- WOULD NOT BE A PROPORTION. 4 AND 10 ARE DIFFERENT
16 10*8 MULTIPLIERS.
I will not give you the answer but I will show you how to solve this.
55*.6= A
65*.6=B
75*.6=C
85*.6 = D
Do you see the trend? Continue until ten equations are formed and add all of the totals. A+B+D+C...=Total
Answer:
44 ounces
Step-by-step explanation:
Begin by setting up your equation in the following format:
(Percent)(Amount) + (Percent)(Amount) = (Percent)(Amount + Amount)
In this case, your equation should look like this:
(0.15)(x) + (0.20)(11) = (0.16)(x + 11)
where x stands for the number of ounces of the 15% alcohol solution needed.
Next, we can begin simplifying to solve for x. Your work should look similar to this:
(0.15)(x) + (0.20)(11) = (0.16)(x + 11)
0.15x + 2.2 = (0.16)(x + 11)
~ Multiply both sides by 100 to eliminate all of the decimals ~
15x + 220 = 16(x + 11)
15x + 220 = 16x + 176
15x = 16x - 44
-x = -44
x = 44
This means that 44 ounces of 15% solution must be mixed with 20% solution to make 16% solution
~Hope this Helps!~
Answer:
12 minutes
Step-by-step explanation:
7.5 feet every minute
90 feet- x minutes
90/7.5- 12
:)
