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7nadin3 [17]
3 years ago
12

Please Please Please help! 

Mathematics
1 answer:
lara [203]3 years ago
4 0
Take the first equation and set it to equal x by subtracting 5y from both sides and multiplying by -1.  Looks like this...

-x + 5y = 1
     -5y      -5y
-x = -5y + 1
-1(-x = -5y + 1)
x = 5y - 1   ... substitute this into the second equation you get.....

2(5y - 1) + 4y = -4   answer is #2
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Convert 28/50to a percent
velikii [3]
The answer is 56%
You first divide 28 by 50=.56, then since it's a decimal, you move the decimal twice to the right to make a percentage=56%
3 0
4 years ago
PLEASE HELP!! brainliest if correct!!
Sonja [21]
Graph #1: No
Graph #2: Yes
Graph #3: No
Graph #4: No
Graph #5: No
Graph #6: Yes

Reasoning:

The vertical line test is a test that determines wether a graph is a function or a relation. The vertical line test shows that if you construct a vertical line through any point on the graph, then the vertical line should only intercept the graph once for it to be a function.
6 0
2 years ago
Calculate the slope.please help due in 2 hours
sergejj [24]

Answer:

Slope = 4

Step-by-step explanation:

Use any two pairs from the table of values, say (0, 3) and (2, 11).

Slope = ∆y/∆x

Slope = \frac{11 - 3}{2 - 0}

Slope = \frac{8}{2}

Slope = 4

3 0
3 years ago
The greatest number of people drinks how many glasses of water
svp [43]

Answer:

eight people drink 6 glasses of water

Step-by-step explanation:

8 0
3 years ago
Betty sets up a lemonade stand and charges $1 per glass. It cost her $50 to set up the stand. Which function gives the profit, p
Talja [164]

Answer:

The correct result would be f(g) = g * $1 - $50.

Step-by-step explanation:

If you would like to find the function that gives the profit Betty makes by selling a number of glasses of lemonade, you can find this using the following steps:

p ... profit

g ... glasses of lemonade

f(g) = p = g * $1 - $50

Read more on Brainly.com - brainly.com/question/1638432#readmore

6 0
3 years ago
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