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What is the answer to pre algebra with pizzazz pg 67?
5X-2y=4
What are the values of x and y when 3x plus 2y equals 5 and x plus 2y equals 7 showing work?
Solve the simultaneous equations by eliminating one of the variables and solving for the other variable, substitute the found value back into one of the equations to solve for the eliminated variable, and then substitute both values found into the other equation as a check:3x + 2y = 5x + 2y = 7{1} - {2} → (3x - x) + (2y - 2y) = 5 - 7 → 2x = -2As there is 27 in both equations, subtract one from the other ({1}-{2}) and then solve {3}2x = -2→ x = -1Substituting back into equation {2}:x + 2y = 7-1 + 2y = 7→ 2y = 8→ y = 4Checking by substituting for x and y in {1}:3x + 2y = 53×-1 + 2×4 = -3 + 8 = 5 as required→ The required solution is x = -1, y = 4.
How do you factor out 5x squared-5x-30?
(5x-10)(x+3)
Factor 2x squared plus 5x plus 3?
2x2 + 5x + 3 Notice the first term, which can be rewritten as 2x times x. With this in mind, you can write the equation as...(2x + a)(x + b)...where -a and -b are the answers.You know that a times b is equal to 3.With a little trial and error, you will find:2x2 + 5x + 3 = (2x + 3)(x + 1)
What pair of term has a GCF of 5x?
5x and 10x
What is y - 4 = 2.5(x + 3) in standard form?
Standard form is 5x - 2y = -23
Rewrite the equation 5x-2y0 in slope-intercept form?
5x - 2y = 05x - 5x - 2y = 0 - 5x-2y = - 5x(-2y)/-2 = (-5x)/-2y = (5/2)x where the slope is 5/2 and the y-intercept is 0.
What is 5x-2y equals 10 in slope intercept form?
5x - 2y = 10 2y = 5x - 10 y = 2.5x - 5......which is the equation in slope intercept form.
What is the y intercept of 5x - 2y equals 20?
write equation in standfrd form y =mx + b where b = y intercept 5x - 2y =20 5x -20 = 2y 5/2 x -10 = y when x = 0 y = -10, the y intercept
What is the slope intercept of 5x plus 2y equals 4?
Write the equation in the standard form: y = mx + c. then slope = m, y-intercept = c and x-intercept = -c/m So, 5x + 2y = 4 2y = -5x + 4 y = -2.5x + 2 So slope = m = -2.5 y-intercept = 2 x-intercept = -2/(-2.5) = 1/1.25 = 0.8 or 4/5
What is 5x-2y-5x plus 7y simplified?
5y explanaition 5x-5x=0, 0-2y=-2y, -2y+7y=5y
Rewrite equation in slope intercept form 5x-2y-70?
5x - 2y - 70 is not an equation and therefore cannot be converted. However, the equation 5x - 2y = 70 converts to slope intercept form the following way: 5x - 2y = 70 = -2y = -5x + 70 = -2y/-2 = -5x/-2 + 70/-2 = y = 5/2 x + (-35) = y = 5/2 x - 35 slope: 5/2 y-intercept: -35 ---- the above answer is wrong due wikianswer's punctuation limit. Which does not allow the "=" The problem is 5x-2y=70 here's how to rewrite the equation. 5x-2y=70 subtract 5x from both side. 2y=70-5x divide both side by 2 y=70-5x/2
What is the standard form for -2y 5x10?
That will depend on where the equality sign is and the plus or minus values of 5x and 10 are of which none have been given.
What is the slope intercept form of the equation 5x plus 2y equals 30?
5x+2y = 30 2y = -5x+30 y = -2.5x+15 Therfore the slope is 2.5 and y the intercept is 15.
What is the slope-intercept form of 5x plus 2y equals negative 4?
5x+2y=-4 Subtract 5x from both sides 2y=-5x-4 divide by two on both sides y=-5/2x-2 y = -2.5x -2 in slope-intercept form
Which is a solution to the equation 5x plus 2y equals 9?
If: 5x+2y = 9 Then: y = -2.5x+4.5 in slope intercept form
What is the answer for -3x-2x plus 4y-2y?
The answer is -5x + 2y. The terms with the same variable are combined by adding or subtracting their coefficients, and then the result is written with the corresponding variable. In this case, -3x and -2x combine to give -5x, and 4y and -2y combine to give 2y.
