3 years ago

What is the result of subtracting the second equation from the first? -2x+y = 0 -7x+3y = 2

Mathematics

1 answer:

Alex3 years ago

8 0

Answer:

-5x + 2y=2

Step-by-step explanation:

$- 7x + 3y = 2 \\ - 2x + y = 0 \\ subtracting \: this.we \: have \\ ( - 7x \: + 3y - 2) - ( - 2x + y) \\ - 7x + 2x + 3y - y - 2 \\ - 5x + 2y - 2 \\ therefore \: we \: have \\ - 5x + 2y = 2$

You might be interested in

Plot the x- and y-intercepts to graph the equation. y=−12x−3

Lisa [10]

X-intercept; -.25
y-intercept; -3

8 0

3 years ago

Read 2 more answers

Carrie finishes her supper at 8:45 P.M. Then she spends 45 minutes doing her homework and 15 minutes getting dressed for bed.

Fed [463]

Answer:

The answer is 9:45

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The number of books borrowed from a library each week follows a normal distribution. When a sample is taken for several weeks, t

12345 [234]

1 SD away from mean is 68% of data.
2 SD away from mean is 95% of data.
3 SD away from mean is 99.7% of data.

1 SD away:
190+30=220

2 SD away:
220+30=250

This shows we are on the outer 5 percent of the normal distribution.
Since you said "more", that means we only look at the right side of your 5%, which is only 2.5%

answer is D, 2.5%

4 0

3 years ago

Read 2 more answers

Does the 4 in 4,567 have the same value as the 4 in 34,811

Strike441 [17]

Hey there!

Yes! The 4 in 4,567 has a value of 4,000 & the 4 in 34,811 has a value of 4,000

4,000 = 4,000

Hope this helps you!

God bless ❤️

xXxGolferGirlxXx

5 0