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Gre4nikov [31]
2 years ago
15

I don't exactly remember how to do this

Mathematics
1 answer:
Advocard [28]2 years ago
7 0

Answer:

29 or D

Step-by-step explanation:

You square both sides to get

7 + y = 36

You then subtract 7 from both sides to get

y = 36 - 7

y = 29

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22. Solve 7x - 9 = 28+ 4(x - 1).<br> X=-3<br> X=3<br> x = 11<br> X=-11​
aleksley [76]

Answer:

c) x = 11

Step-by-step explanation:

Given equation: 7x - 9 = 28 + 4(x - 1)

<u><em>Steps:</em></u>

1. Distribute 4 through the parentheses:

7x - 9 = 28 + 4(x) + 4(-1)

7x - 9 = 28 + 4x - 4 [simplify]

7x - 9 = 24 + 4x

2. Subtract 4x from both sides:

7x - 4x - 9 = 24 + 4x - 4x

3x - 9 = 24

3. Add 9 to both sides:

3x - 9 + 9 = 24 + 9

3x = 33

4. Divide both sides by 3:

3x ÷ 3 = 33 ÷ 3

x = 11

5. Check your work:

7x - 9 = 28 + 4(x - 1) [substitute 11 for x]

7(11) - 9 = 28 + 4(11 - 1) [simplify]

77 - 9 = 28 + 4(10) [simplify]

68 = 28 + 40 [add]

68 = 68 ✔

Learn more here:

brainly.com/question/27844321

brainly.com/question/21222758

7 0
2 years ago
Read 2 more answers
The table below gives data from a linear function. find a formula for the function.
baherus [9]
Given the following table that gives data from a linear function:

\begin {tabular}&#10;{|c|c|c|c|}&#10;Temperature, $y = f(x)$ (^\circ C)&0&5&20 \\ [1ex]&#10;Temperature, $x$ (^\circ F)&32&41&68 \\ &#10;\end {tabular}

The formular for the function can be obtained by choosing two points from the table and using the formular for the equation of a straight line.

Recall that the equation of a straight line is given by
\frac{y-y_1}{x-x_1} = \frac{y_2-y_1}{x_2-x_1}

Using the points (32, 0) and (41, 5), we have:
\frac{y-0}{x-32} = \frac{5-0}{41-32}= \frac{5}{9}  \\  \\ \Rightarrow y=\frac{5}{9}(x-32)
4 0
2 years ago
In the picture below, which lines are lines of symmetry for the figure?
harkovskaia [24]

A line of symmetry would separate a shape to make multiple shapes that are exactly the same.

The answer is C.2

3 0
2 years ago
Mr. Carson makes $21.50 an hour. He works 8 hours a day and works 5 days a week.
mash [69]

Answer:

$860

Step-by-step explanation:

21.50 times 8 = 172

172 times 5 = 860

CallmeCarson lol

5 0
3 years ago
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A student can solve 12 math problems in 45 minutes. How long will it take the student to complete 20 problems if all the problem
Alekssandra [29.7K]

Answer:

75min or 1 hour 15min

Step-by-step explanation:

45/12 = 3.75min per problem

3.75 x 20 = 75min or 1 hour 15min

7 0
2 years ago
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