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ra1l [238]
3 years ago
12

Calcula y:

Mathematics
1 answer:
dybincka [34]3 years ago
7 0

Answer:

Step-by-step explanation:

-28x + 10y = -120

 40x + 10y = 180

12x = 60

x = 5: D is the answer

8(5) - 2y = 36

40 - 2y = 36

-2y = -4

y = 2: A is the other answer

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Can anyone help and explain how to do this it’s very confusing?
Margarita [4]

Answer:

Find the slopes; 123 servings

Step-by-step explanation:

When you look at the graph and table, find out which ones have a slope of 1/2

To find slope you have to use this equation

\frac{y - y^1}{x - x^1}

So for each graph and table, calculate the slope using that formula :)

For the second question,

For every 10 students, the amount of juice dispensed was

7*4 + 3*8 = 52

So divide 52 by 10 to get 5.2

Then divide the total amount of juice (640) by 5.2 and that rounds to about 123 servings of juice

4 0
3 years ago
How many quarts, rounded to the nearest tenth, are in 50 liters?
valkas [14]

Answer: 52.9 quarts

Step-by-step explanation:

From the question, we are informed to calculate the number of quarts that are in 50 liters.

1 liter = 1.057 liquid quarts

50 liters will now be:

= 50 × 1.057

= 52.85

= 52.9 quarts

4 0
3 years ago
How do I complete this chart?
Mrac [35]

Answer:

Step-by-step explanation:

You would first have to plug in for x, (which is already given). After plugging in for x, you would need to solve the equation to get y.

Once you have both x and y, you will have your (x,y)

For example: (given x value = -5)

f(x) = -|x - 5| -4\\f(-5) = -|(-5) - 5| - 4\\f(-5) = -|-10| - 4\\f(-5) = -10 - 4\\f(-5) = -14\\f(-5) = y = -14\\\\

so:

x = -5

y = -14

( -5, -14)

6 0
3 years ago
Abigail and Spencer calculate the slope of the line between the points (3,-1) and (5,4) in different ways. Abigail calculates th
ElenaW [278]
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3 years ago
2(y - 6) = 3ty - 4) - y
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Answer:

80000

Step-by-step explanation:

7 0
3 years ago
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