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3 years ago

[20 points] and Brainiest Which table shows a linear function? (options in attachments)

Mathematics

1 answer:

AlexFokin [52]3 years ago

6 0

Answer:

Table D

Step-by-step explanation:

Linear equations have a proportional relationship between x & y values. This means that for every time x goes up, y goes up a certain amount.

For Table D, every time x goes up 1, y goes up 2. We can see this by subtracting one of the smaller y values from one of the larger y values.

9-7=2

7-5=2

5-3=2

All of them are equal to 2, so we know that y increases at a constant rate, thus making it a linear equation.

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3 years ago

What is the domain of the function below? (0,2 (3,1) (5,2) (8,4)

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4 years ago

Read 2 more answers

4 1/6 + 5 2/3Enter your answer as a mixed number in simplest form

galina1969 [7]

Answer:

Step-by-step explanation:

First, change the mixed numbers into improper fractions:

5 2/3 = 17/3

Then, find the common denominator:

41/6 + 17/3=

LCM = 6

17/3 *2 = 34/6

41/6 + 34/6

Last, Add

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3 0

2 years ago

I don’t understand can someone help me

Elden [556K]

You set 49 equal to 8x - 15

So

8x - 15 = 49
+15 + 15

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Then divide by 8

X= 8

6 0

3 years ago

A mistake was made in mixing the lemonade— PLEASE HELP!!

beks73 [17]

Answer:

Part A:

$4 + x = y$

$0.5*4 + 1*x = 0.7*y$

$x = 8/3\ quarts\ of\ 100\%\ solution$

$y = 20/3\ quarts\ of\ 70\%\ solution$

Part B:

$x + y = 10$

$2x + 3y = 23$

$x = 7$ and $y = 3$

Step-by-step explanation:

Part A:

The inicial concentration of the lemonade is 50%, and the volume is 4 quarts, and we will add x quarts of a lemonade with a concentration of 100%, so the total volume will be y, and the concentration will be 0.7, so we have that:

$4 + x = y$

$0.5*4 + 1*x = 0.7*y$

Using the value of y from the first equation in the second one, we have:

$2 + x = 0.7*(4 + x)$

$2 + x = 2.8 + 0.7x$

$0.3x = 0.8$

$x = 8/3\ quarts$

$y = 4 + 8/3 = 20/3\ quarts$

Part B:

If he shoots a total of ten targets, we can write the equation:

$x + y = 10$

Each stationary target is 2 points, and each moving target is 3 points, so if the total points is 23, we have:

$2x + 3y = 23$

If we subtract the second equation by two times the first one, we have:

$2x + 3y - 2*(x + y) = 23 - 2*10$

$2x + 3y - 2x - 2y = 23 - 20$

$y = 3$

$x + 3 = 10$ ⇒ $x = 7$

4 0

3 years ago