The answer is 10 because the student student did not follow order of op. This means that the student added 25 and 5 together then dived that. However he should have divided 25 by 5 first and then added 5
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Answer:
1a: x+3 = 5
1c: 6 = 2z
2b: x = 2
2d: 3 = z
3: the solutions make the hangars balance
Step-by-step explanation:
1. We can write the equations by listing the contents of the hangar and using an equal sign to show the balance between left side and right side. It can work well to put left side contents of the hangar on the left side of the equal sign.
A: x + 3 = 5
C: 1 + 1 + 1 + 1 + 1 + 1 = z + z simplifies to 6 = 2z
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2. B: We can subtract 3 from both sides of the hangar (and equation) to find the value of x.
(x +3) -3 = 5 -3
x = 2 . . . . . hangar balances with 2 on the right
D: We can divide both sides of the hangar by 2, splitting the content into two equal parts. Then one of those parts can be removed from each side.
2(3) = 2(z)
3 = z . . . . . . hangar balances with 3 on the left
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3. The found values will keep the hangar in balance when they are substituted for the corresponding variables.
A: 2 + 3 = 5
C: 1 + 1 + 1 + 1 + 1 + 1 = 3 + 3
For the right triangle shown in the picture, recall the trigonometric identity of the cosine function:
Isolate <em>a</em> from the equation:
Substitute for <em>c=6.3</em> and <em>B=43.8°</em>:
Use a calculator to evaluate the expression:
Answer:
9*(-x +2) > 0
Step-by-step explanation:
-6(2x-3)>–3x
-6 * (2*x - 3) > -3*x
-6*2*x -6*(-3) > -3*x
-12*x + 18 > -3*x
-12x + 18 + 3x > 0
-9x + 18 > 0
9*(-x +2) > 0
The answer to this question would be: C.5x = 5
In this question, you got two equation which was:<span>1st: 2x + y = 3
2nd: x - 2y = -1</span>
You are asked to multiply one of the equation and add it. If you multiply the first equation, the number of y would be same so the y variable will be removed. If you multiply the second equation, the number of x would be same so the x variable will be removed.
In the answer, all variable that used is x, so the one you need to multiply should be the first equation(removing y with result with x)
<span>4x + 2y = 6
x - 2y = -1
__________+
5x +0y = 5
</span>