Solving Systems Of Linear Equations - Mr. Mueller | Attempts: 246

2.

C = 13x + 17c = -3x + 1Use the previous question/answer to solve for c

Explanation
c = 13(-1) + 17
c = -13 +17
c = 4

or

c = -3(-1) + 1
c = 3 + 1
c = 4

Rate this question:

3.

j = 45 - 5aj = 35 - 7aSolve for a

Explanation
45 - 5a = 35 - 7a
45 + 2a = 35
2a = -10
a = -5

Rate this question:

4.

J = 45 - 5aj = 35 - 7aUse the previous question/answer to solve for j

Explanation
j = 45 - 5(-5)
j = 45 + 25
j = 70

or

j = 35 - 7(-5)
j = 35 + 35
j = 70

Rate this question:

5.

e = 15 + 9ke = 20 + 4kSolve for k

Explanation
15 + 9k = 20 + 4k
15 + 5k = 20
5k = 5
k = 1

Rate this question:

6.

e = 15 + 9ke = 20 + 4kUse the previous question/answer to solve for e

Explanation
e = 15 + 9(1)
e = 15 + 9
e = 24

or

e = 20 + 4(1)
e = 20 + 4
e = 24

Rate this question:

7.

y = 700 - 0.5xy = 900 - 1xSolve for x

Explanation
700 - 0.5x = 900 - 1x
700 + 0.5x = 900
0.5x = 200
x = 400

Rate this question:

8.

y = 700 - 0.5xy = 900 - 1xUse the previous question/answer to solve for y

Explanation
y = 700 - 0.5(400)
y = 700 - 200
y = 500

or

y = 900 - 1(400)
y = 900 - 400
y = 500

Rate this question:

9.

y = 34x - 29y = 13x + 13Solve for x

Explanation
34x - 29 = 13x + 13
21x - 29 = 13
21x = 42
x = 2

Rate this question:

10.

y = 34x - 29y = 13x + 13Use the previous question/answer to solve for y

Explanation
y = 34(2) - 29
y = 68 - 29
y = 39

or

y = 13(2) + 13
y = 26 + 13
y = 39

Rate this question:

11.

h = 2t - 6h = 15 + 0.25tSolve for t

Explanation
2t - 6 = 15 + 0.25t
1.75t - 6 = 15
1.75t = 21
t = 12

Rate this question:

12.

h = 2t - 6h = 15 + 0.25tUse the previous question/answer to solve for h

Explanation
h = 2(12) - 6
h = 24 - 6
h = 18

or

h = 15 + 0.25(12)
h = 15 + 3
h = 18

Rate this question:

13.

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wFind the weight "w" that makes the length of these springs equal

Explanation
50 + 3w = 10 + 8w
50 = 10 + 5w
40 = 5w
w = 8

Rate this question:

14.

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wUsing the last question/answer, find the length "s" of the two equal springs

Explanation
s = 50 + 3(8)
s = 50 + 24
s = 74

or

s = 10 + 8(8)
s = 10 + 64
s = 74

Rate this question:

15.

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wFor the SECOND equation, what does "8" tell you about the length of the spring?

8 is how much the spring stretches by with every pound added
8 is the slope
8 is the length of the spring with no weight attached

Correct Answer

A. 8 is how much the spring stretches by with every pound added

Explanation

The correct answer is "8 is how much the spring stretches by with every pound added." This means that for every pound of weight added to the spring, the length of the spring increases by 8 inches.

Rate this question:

16.

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wFor the FIRST equation, what does "50" tell you about the length of the spring?

50 is how much the spring stretches with every pound added
50 is the y-intercept
50 is the length of the spring with no weight attached

Correct Answer

A. 50 is the length of the spring with no weight attached

Explanation

The correct answer is "50 is the length of the spring with no weight attached". This means that when there is no weight attached to the spring, its length is 50 inches.

Rate this question:

Solving Systems Of Linear Equations - Mr. Mueller

c = 13x + 17c = -3x + 1Solve for x

Quiz Preview

C = 13x + 17c = -3x + 1Use the previous question/answer to solve for c

j = 45 - 5aj = 35 - 7aSolve for a

J = 45 - 5aj = 35 - 7aUse the previous question/answer to solve for j

e = 15 + 9ke = 20 + 4kSolve for k

e = 15 + 9ke = 20 + 4kUse the previous question/answer to solve for e

y = 700 - 0.5xy = 900 - 1xSolve for x

y = 700 - 0.5xy = 900 - 1xUse the previous question/answer to solve for y

y = 34x - 29y = 13x + 13Solve for x

y = 34x - 29y = 13x + 13Use the previous question/answer to solve for y

h = 2t - 6h = 15 + 0.25tSolve for t

h = 2t - 6h = 15 + 0.25tUse the previous question/answer to solve for h

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wFind the weight "w" that makes the length of these springs equal

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wUsing the last question/answer, find the length "s" of the two equal springs

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wFor the SECOND equation, what does "8" tell you about the length of the spring?

The length s (in inches) of a spring is a function of the weight w (in pounds) that is attached to the spring. The length of two springs, as a function of the weight added ares = 50 + 3w ands = 10 + 8wFor the FIRST equation, what does "50" tell you about the length of the spring?