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3 years ago

What's The slope intercept form of: x - y = 7

1 answer:

5 0

Y=x-7 this is because you subtracted the x to both sides. Since y is a negative, you divide by -1 causing the -x to turn positive and the positive seven to be negative seven.

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1+1 what is it can you answer

Lorico [155]

Answer:

2 is the answer

Step-by-step explanation:

1 + 1 would be 2

3 0

3 years ago

Read 2 more answers

Find the smallest positive $n$ such that \begin{align*} n &\equiv 3 \pmod{4}, \\ n &\equiv 2 \pmod{5}, \\ n &\equiv

Alex777 [14]

4, 5, and 7 are mutually coprime, so you can use the Chinese remainder theorem right away.

We construct a number $x$ such that taking it mod 4, 5, and 7 leaves the desired remainders:

$x=3\cdot5\cdot7+4\cdot2\cdot7+4\cdot5\cdot6$

Taken mod 4, the last two terms vanish and we have

$x\equiv3\cdot5\cdot7\equiv105\equiv1\pmod4$

so we multiply the first term by 3.

Taken mod 5, the first and last terms vanish and we have

$x\equiv4\cdot2\cdot7\equiv51\equiv1\pmod5$

so we multiply the second term by 2.

Taken mod 7, the first two terms vanish and we have

$x\equiv4\cdot5\cdot6\equiv120\equiv1\pmod7$

so we multiply the last term by 7.

Now,

$x=3^2\cdot5\cdot7+4\cdot2^2\cdot7+4\cdot5\cdot6^2=1147$

By the CRT, the system of congruences has a general solution

$n\equiv1147\pmod{4\cdot5\cdot7}\implies\boxed{n\equiv27\pmod{140}}$

or all integers $27+140k$ , $k\in\mathbb Z$ , the least (and positive) of which is 27.

3 0

3 years ago

Use the the substitution method to solve the system of linear equations. y = -2x + 6 x=4 enter your answer as an ordered pair

Morgarella [4.7K]

Answer:

The answer would be -2 then.

Step-by-step explanation:

6 0

2 years ago

Divide and make sure to reduce to LOWEST terms:

Ksju [112]

Just put it in the calculator and divide 4 by 5 then do 3 by 5 and keep on

3 0

2 years ago

The sum of two numbers is 74. One number is 6 times less than 4 times the second number. Find the two numbers.

OLEGan [10]

I'll get you started. Let x and y be the two numbers. we have: x + y = 74 (sum is 74) x = 4y - 6 (the number x is six less than 4 times y) Now that you have the equations use an algebraic techniques to eliminate one variable thereby solving for the other. If you need more help add a comment to your question.

3 0

2 years ago