I'm not sure what we're being asked to find here but if this is putting the equation into slope-intercept form, then it's:
3x - y = -1
-y = -3x -1
y = 3x - 1
And
-3x + 4y = -14
4y = 3x - 14
y = 0. 75x - 3.5
But if you're asking to solve this as systems of equations then:
3x - y = -1
-3x + 4y = -14
Solving by elimination. Add both equations together.
3x - y = -1
+ -3x + 4y = -14
———————————
3y = -15
Divide both sides by 3.
y = -5
Now that we know the numerical value of y, we can solve for x.
3x - y = -1 -3x + 4y = -14
3x - (-5) = -1 -3x + 4(-5) = -14
3x + 5 = -1 -3x - 20 = -14
3x = -6 -3x = 6
x = -2 x = -2
So, the solution/coordinates to these system of equations are (-2, -5).
Answer: The square root of 18 divided by square root of 50 is 5 square root of x divided by 5.
[C] 0.05b + 0.25s + 0.4n = 20
b = balloons
s = streamers
n = noisemaker
Since they already give us the price of each item we just need to add a variable at the end of each one since we don't know how many of each item is bought. Adding the costs of all the party supplies should not go over $20. We can automatically eliminate B and D. We can also eliminate A because the prices of each item are incorrect. Therefore, C is the correct answer.
Best of Luck!
$10.50
Explanation:
Let x be the cost of the individual books. Then 24.81=3x−6.69
3x= 24.81+ 6.69 =31.50
x=31.50/3=10.50
25/x=100/20 criss cross and u will get 500/100=5 then 5 students resivs A.