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Colt1911 [192]
3 years ago
14

-Solve each equation. Example x+3=12 9+3=12

Mathematics
1 answer:
mash [69]3 years ago
7 0

y + 9 = 9  | - 9 \\ y+ 9 - 9 = 9 - 9 \\ y = 0

10 + 2x = 20 | - 10 \\ 10 + 2x - 10 = 20 - 10 \\ 2x = 10 | \div 2 \\ 2x \div 2 = 10 \div 2 \\ x = 5

17 + 3c = 26 | - 17 \\ 17 + 3c - 17 = 26 - 17 \\ 3c = 9 | \div 3 \\ 3c \div 3 = 9 \div 3 \\ c = 3

x - 4 = 3 | + 4 \\ x - 4 + 4 = 3 + 4 \\  x = 7

2z - 7 = 7 | + 7 \\ 2z - 7 + 7 = 7 + 7 \\ 2z = 14 | \div 2 \\ 2z \div 2 = 14 \div 2 \\ z = 7

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e-lub [12.9K]
Is this from k12? i am a k12 student, and the answer should be 2.2 units but I could be wrong.
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3 years ago
Which points have an x-value less than zero?
Zanzabum

Answer:

C, D, J

Step-by-step explanation:

Points to the left of the y-axis have a negative x- value

Points to the right of the y-axis have a positive x- value

Points on the y-axis have an x- value of zero

C(- 4, 5), D(- 9, 9 ), J(- 9, 0) ← are the coordinates of the points

All have a negative x- value



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3 years ago
The distance that an object covered in time was measured and recorded in the table below.True/False: The distance covered is dir
Sedaia [141]

Answer:

true

Step-by-step explanation:

did the test

5 0
3 years ago
A line has a slope of $-\frac{3}{7},$ and its $y$-intercept is $(0,18)$. What is its $x$-intercept?
puteri [66]

Answer:

(42, 0)

Step-by-step explanation:

Since we know the slope and y-intercept we can write the equation of the line in slope-intercept form which is y = mx + b; therefore, the equation is y = -3/7x + 18. To find the x-intercept, we just plug in y = 0 which becomes:

0 = -3/7x + 18

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x = 42

8 0
3 years ago
Read 2 more answers
I need help on everything on 45 45 90 right triangles. I dont know how to solve two variables when one is shown.
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You can use a square plus b square equal C square to fijd each length . or you can memorize the special triangles or you can also do proportional problem. it all works
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3 years ago
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