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Zigmanuir [339]
3 years ago
15

Use the substitution method to solve the system of equations.

Mathematics
1 answer:
grandymaker [24]3 years ago
5 0
Insert 3x - 7 for y in 15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
0 = -21
There is no solution.
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Which graph represents a function?
Sliva [168]

Answer:

D

Step-by-step explanation:

A function is where each input (here, the input is x) corresponds to exactly one output (here, the output is y). In other words, if a function is graphed, we should be able to draw a vertical line through every single part of it that will intersect it at only one place.

Let's examine each choice.

(A) Well, if we draw a vertical line through the graph, it will obviously intersect the entire line - which is an infinite number of intersections, so this is not a function.

(B) If we draw a vertical line through the portion of the graph that lies near the positive x-axis, we note that it will intersect twice, so this is not a function.

(C) If we strategically draw a vertical line through the y-axis, we see it will intersect two times, so this is not a function.

(D) We can draw a vertical line through any portion of this graph and know that it will only intersect once.

Therefore, the answer is D.

5 0
3 years ago
Read 2 more answers
Seca
DaniilM [7]
You should give more points depending on the hard Answers..
7 0
3 years ago
Jean has $280 in her savings account. Starting next week, she will deposit $30 in her account every week.
Sophie [7]
It’s not proportional
8 0
2 years ago
Will give Brain!! To this
Mamont248 [21]

Answer: 13.2

Step-by-step explanation:

the ratio between the given measurements (11 and 5) is 2.2 [5 x 2.2 = 11]

so, i just multiplied 6 by 2.2 , which equals 13.2 .

hope this helps! xoxo

7 0
2 years ago
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8 classmates share 4 pizzas each person receive 4 eights right<br> ...?
Jet001 [13]
For the given question above, if you divide the 4 pizzas up between the 8 people you get the fraction 4/8. So this is TRUE.
<span>You then reduce the fraction by a common factor (in this case 2), giving you 1/2. </span><span>So each person gets 1/2 of a pizza. </span>
6 0
2 years ago
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