Help me please i don’t understand how I’m supposed t solve this

Mathematics

1 answer:

Tanya [424]3 years ago

5 0

basically its asking you to make an equation out of the given situation and relate it to the graph

in this situation, u can see that the constant is 17.89 as that is the activation fee and the gradient would be 3 for every gigabyte. we sub y as the cost and x as the gigabyte. so the gradient y/x would be cost/gigabyte which is 3

so your graph would have an equation of y=3x+17.89

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A bag has 10 pens in it: 4 black, 3 blue, 2 green and 1 red

lukranit [14]

So chance to get a black pen: 4/10=2/5
Chance to get a red pen: 1/10
Chance for the two happened at the same time
2/5 * 1/10 = 2/50=1/25

I think... I’m not very sure though

6 0

3 years ago

which description best describes the solution to the following system of equations y= -2x +3 y= -x + 1

marin [14]

For this case we have the following system of equations:
$y = -2x +3

y = -x + 1$
Equating the values of y we have:
$-2x +3 = -x + 1
$
From here, we can clear the value of x.
We have then:
$-2x + x = 1 - 3

-x = -2

x = 2$
Then, we look for the value of y.
For this, we substitute x in any of the equations:
$y = -x + 1

y = -2 + 1

y = -1$
Answer:
The ordered pair solution of the system of equations, is given by:
$(x, y) = (2, -1)$