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julia-pushkina [17]
2 years ago
11

9. Simplify the expression: 4a + 8 - 2a – 4 + 7b.

Mathematics
1 answer:
nikdorinn [45]2 years ago
8 0

Answer:

2a + 7b + 4

Step-by-step explanation:

4a + 8 - 2a - 4 + 7b

<u><em>Group like terms</em></u>

4a - 2a + 7b + 8 - 4

<u><em>Add similar elements (4a - 2a)</em></u>

2a + 7b + 8 - 4

<u><em>Add/Subtract (8 - 4)</em></u>

2a + 7b + 4

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STALIN [3.7K]

Answer:

The correct option is D) (5x − 2)(2x − 3).

Step-by-step explanation:

Consider the provided expression.

10x^2-19x+6

Where x is time in minutes.

We need to find the appropriate form of the expression that would reveal the time in minutes when the trough is empty.

When the trough is empty the whole expression becomes equal to 0.

Substitute the whole expression equal to 0 and solve for x that will gives us the required expression.

10x^2-19x+6=0

10x^2-15x-4x+6=0

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Now consider the provided option.

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3 0
3 years ago
One half of the sum of a number and 10
garri49 [273]

Let's assume the number be x.

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6 0
3 years ago
A number c minus 4.3 is no less than 16. write this word sentence as an inequality.
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Answer:

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Answer:

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