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3 years ago

What is the answer to y=-8x-14 and y=6x

Mathematics

1 answer:

Virty [35]3 years ago

7 0

Answer:

Replace y for y = 6x... 6x = -8x-14
Get the x's on one side of the equal sign, and constants on the other; Add 8x to 6x... 14x = -14
Divide by 14 to get x alone... x = -14/14 = -1
The answer is x = -1

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How do u round decimals like 18.194 rounded to the nearest hundred

Lilit [14]

You look at the decimal place next to the hundredth one. In this case, it’s 4 so you round down
18.19 is the answer

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3 years ago

One hose can fill a small swimming pool in 65 minutes. A larger hose can fill the pool in 35 minutes. How long will it take the

tatuchka [14]

Answer:

22.75 minutes or 22 minutes 45 seconds

Step-by-step explanation:

Okay, this is a working together question. Let’s walk through it together!

Firstly, let’s say the total volume of the swimming pool is x sq.meters

Now, the rate of the smaller hose would be x/65 while that of the larger will be x/35

Now, their combined rate would be x/65 + x/35 = 100x/2275

Now, since the volume is x, the time taken is simply, the volume divided by the joint rate. That is mathematically equal to x divided by 100x/2275

x * 2275/100x = 2275/100 = 22.75 minutes or 22 minutes 45 seconds

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3 years ago

What is the percent of decrease from 100 to 49?<br><br> Write your answer using a percent sign (%).

slavikrds [6]

Answer:

Step-by-step explanation:

Decrease = 100 - 49 = 51

Percentage of decrease =

$=\frac{51}{100}*100$

= 51%

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3 years ago

46+ 2/7w<br> w= -1/2<br> You don't need to show your work

Tomtit [17]

46.1428 or -46(3/14)

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3 years ago

I need to find the product of f and g. what is the domain and range of the product

velikii [3]

Step-by-step explanation:

Putting both functions into a graphing calculator, we can easily find the domain and range. (attatched)

By looking at the graph, we can tell that f(x) is a quadratic function because of the symmetry. We can also tell that it never goes below 4. Knowing this, we can determine the domain and range.

Domain: {x | all real numbers}

Range: {y | y > 4}

By looking at the graph, we can tell that g(x) is an exponential function because it has a curve, and never goes below the x. Knowing this, we can determine the domain and range.

Domain: {x | all real numbers}

Range: {y | y > 0}

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3 years ago