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lisabon 2012 [21]
3 years ago
15

Find the value of each expression

Mathematics
1 answer:
nikdorinn [45]3 years ago
7 0

Answer: 1. -24

2. -10

3. 8

4. 8

5. -10

6. -75

Step-by-step explanation:

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Describe whether each equation is true for all one or no values of x
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Answer:

I'll gladly answer if you could give more information. All we can see is the question "Describe whether each equation is true for all one or no values of x," so we need some context.

Step-by-step explanation:

We need context to this.

7 0
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I buy a MP3 player for £40 in a sale where it was 20% off. What was the original price
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A car travels at 30 1/5 miles in 2/3 of an hour. What is the average speed, in miles per hour
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45.3 miles/h

Step-by-step explanation:

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-3x + 7y = -16<br> -9x + 5y = 16
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Step-by-step explanation:

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7 0
3 years ago
Kevin cuts lawns during the summer months. He charges $10 plus $5 per hour. The algebraic model is C = 5h + 10, where C represen
Oxana [17]

Answer:

\begin{center}\begin{tabular}{ c c c }Hours(h) & Total Cost(C) \\ 1 & 15  \\  2 & 20  \\   3 & 25  \\ 4 & 30   \\ 5 & 35    \end{tabular}\end{center}

Step-by-step explanation:

Given that:

Kevin charges $10 plus $5 per hours

C = 5h + 10

To find:

The table of values for hours worked from 1 to 5.

Solution:

First of all, let us put h = 1 in the given equation:

C = 5 \times 1 + 10

C = 5 + 10 = $15

Now, let us put h = 2 in the given equation:

C = 5 \times 2 + 10

C = 10 + 10 = $20

Now, let us put h = 3 in the given equation:

C = 5 \times 3 + 10

C = 15 + 10 = $25

Now, let us put h = 4 in the given equation:

C = 5 \times 4 + 10

C = 20 + 10 = $30

Now, let us put h = 5 in the given equation:

C = 5 \times 5 + 10

C = 25 + 10 = $35

So, the table becomes each row incrementing h by 1:

\begin{center}\begin{tabular}{ c c c }Hours(h) & Total Cost(C) \\ 1 & 15  \\  2 & 20  \\   3 & 25  \\ 4 & 30   \\ 5 & 35    \end{tabular}\end{center}

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