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3 years ago

Rewrite the following equation in standard form. y = -7x - 1

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

5 0

Standard form is written Ax + By = C where A, B, and C are all integers.

In other words, no fractions.

Also, the A or the coefficient of the x term must be positive.

The only thing we need to do is add 7x to both sides to get 7x + y = -1.

So 7x + y = -1 is our answer.

vlada-n [284]3 years ago

3 0

Answer: 7x+y=-1

Step-by-step explanation:

Add 7x to both sides

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Need help pls asap. 40 points

tia_tia [17]

Answer:

8.04

Step-by-step explanation:

Solution 1

x= r- 4.5= 25.2/2 - 4.5= 8.1

Solution 2

x= √(25.2/2)² - 9.7²= √64.67= 8.04

refer to attachment

6 0

2 years ago

The regular price of an item is $150. The item is on sale at a discount rate of 30%.

Aleonysh [2.5K]

Answer:

$105

Step-by-step explanation:

30% of 150 is 45.

150-45 = 105

Hope that helps

5 0

2 years ago

Read 2 more answers

Evaluate. 5(-6) = _____

Brums [2.3K]

ANSWER

Your answer is -30

3 0

3 years ago

Solve the system of equations using multiplication. 3x – 3y = –3 5x – y = –13 What is the solution of the system?

love history [14]

ANSWER

The solution is

x=-3,y=-2

EXPLANATION

First equation

3x – 3y = –3

Second Equation:

5x – y = –13

Multiply the second equation by 3 to get:

Third equation:

15x-3y=-39

Subtract the first equation from the third equation:

$15x - 3x = - 39 - - 3$

$12x = - 36$

Divide both sides by 12,

$x = \frac{ - 36}{12} = - 3$

Put x=-3 into the first equation:

$3( - 3) - 3y = - 3$

$- 9 - 3y = - 3$

Group like terms,

$- 3y = - 3 + 9$

$- 3y = 6$

$y = - 2$

The solution is

x=-3,y=-2

6 0

2 years ago

Simply 20-3[4(z+1)-6(z-2)]

creativ13 [48]

Answer:

The answer is 6z-28

Step-by-step explanation:

20 - 3[4(z+1) - 6(z-2)]

= 20 - 3(4z+4-6z+12)

= 20 - 3(16 - 2z)

= 20 - 48 + 6z

= 6z - 28

8 0

3 years ago