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1 year ago

Solve for b. 5 + 2b = 9 Show your work for each step as you solve for b.

Mathematics

2 answers:

Komok [63]1 year ago

7 0

Answer:

5+2b=9

2b=9-5

b=4/2

b=2

Dahasolnce [82]1 year ago

6 0

Answer:

$\boxed{\sf{b=2}}$

Step-by-step explanation:

Isolate the b from one side of the equation.

First, subtract by 5 from both sides.

$\sf{5+2b-5=9-5}$

Solve.

Subtract.

9-5=4

2b=4

Divide by 2 from both sides.

2b/2=4/2

Solve.

Divide the numbers from left to right.

4/2=2

$\Longrightarrow \boxed{\sf{b=2}}$

Therefore, the correct answer is b=2.

I hope this helps, let me know if you have any questions.

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kakasveta [241]

$\begin{gathered} c)\text{ output = (input}\times\text{ input) }+\text{ 1} \\ d)\text{ output = input + 5} \end{gathered}$

Explanation:

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$\begin{gathered} d)\text{ rate of change = }\frac{change\text{ in output }}{\text{change in input}} \\ \text{rate of change = }\frac{-5-(-15)}{0-(-2)}\text{ = }\frac{10-(-5)}{3-0}\text{ = }\frac{15-10}{4-3} \\ \text{rate of change = }\frac{10}{2}\text{ = }\frac{15}{3}=\frac{5}{1} \\ \text{rate of change = 5} \end{gathered}$ $\text{output = input + 5}$

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9 months ago

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rewona [7]

Answer:

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Step-by-step explanation:

h(3k-12.4)

= h(3k) - h(12.4)

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x = 2 → y = - 3

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