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Get the answer​

Step-by-step explanation:

let's just write the equations on top of each other as in a large subtraction, then transform one of them so that at least one term is the range in both equations, and then do the subtraction.

a)

I automatically write rational numbers as the total fractions (14 1/4 = 57/4, 3 3/4 = 15/4)

15x - 7y = 57/4

- 5x - y = 15/4

15x - 7y = 57/4

- 15x - 3y = 45/4

-------------------------

0 -4y = 12/4

y = -(12/4)/4 = -12/16 = -3/4

then we use that in the simpler second equation

5x - -3/4 = 15/4

5x + 3/4 = 15/4

5x = 12/4

x = (12/4)/5 = 12/20 = 3/5

b)

we don't need to transform any equation, as the x terms are already equal.

3x - 4y = 2

- 3x - 7y = -1

-------------------

0 3y = 3

y = 3/3 = 1

using this in e.g. the first equation

3x - 4×1 = 2

3x - 4 = 2

3x = 6

x = 6/3 = 2

Answer:

74

Step-by-step explanation:

subtract a from b

√64.93 units

Step-by-step explanation:

Let point A and B be x and y.

Distance=√(x)²+(y)²

=√(64)²+(-11)²

=√4096+121

=√4217

√64.93 units

Answer:

........12......... ...............

Answer:

11$ for 10 is better it cost 1.1 per and 4 for 3$ cost 1.33333 (have a nice flight and I would like that brainliest if that's ok) :>

Answer:

TRUE

Step-by-step explanation:

Absolute value refers to a point's distance from zero or origin on the number line, regardless of the direction. The absolute value of a number is always positive

Answer:

4r-4

Step-by-step explanation:

im pretty sure very sure

Answer:

4000 m

Step-by-step explanation:

1 km =1000 m

Thus,

1000 by 4

=4000 km

Answer:

4 shirts

Step-by-step explanation: 150 - 49.5 = 100.5 / 22.99 = 4.3

Answer:

4shirt thats is correct i research it

Answer:

$100

Step-by-step explanation:

77 +23= 100.

she gave the cashier a 100 dollars

Answer:

2.4 %

Step-by-step explanation:

magic *poof*

Answer:

14x-13 good luck

Step-by-step explanation:

this is the answer

(9x-6)- (-5x+7)

9x-6+5x-7

9x+5x-6-7

14x-13

Answer:

3855.25???

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

the coefficient of the expression is +2 .

hope this helps.

Answer:56

Step-by-step explanation:bc thats the answer

Answer:

24 machines

Step-by-step explanation:

36*54= x*81

x=36*2/3

x=24

Answer:

24

Step-by-step explanation:

We can set up a simple equation and solve for x to get our answer

36 machines for 54 days = x machines for 81 days

we know that they will produce the same amount of toys as the end result, so we can set both equations equal to each other and solve for x

so,  

[tex]36*54=81x\\\\\frac{(36*54) }{81} =x\\\\\frac{1944}{81}=24 \\\\x=24[/tex]  

first, divide both sides by 81

then multiply 36 with 54 and divide by 81

and we get x=24

So it'll take 24 machines to produce the same number of toys in 81 days

Feel free to ask questions if you need further help

w > -5 shows that w is greater than -5 and since 13 is greater than -5, hence the inequality expression w > -5 is true

We need to get the equation that is true for w to be 13. This means that the required inequality expression should be w must be a positive integer.

For the Expression -w - 3 > -5

-w > -5 + 3

-w > -2

w < 2

Since w is less than 2, hence the inequality is wrong

For the inequality

-w - 3 > 5

-w > 5 + 8

-w > 13

w < -13

Since w < -13, hence the inequality is wrong

For the inequality w > -5

It shows that w is greater than -5 and since 13 is greater than -5, hence the inequality expression w > -5 is true

Learn more here: https://brainly.com/question/15816805

Answer:

b. the two lines are neither parallel nor perpendicular.

The average number of miles that would be ridden to meet his goal is 7.2 miles.

Total distance = 52 miles

Distance ridden = 16 miles

Number of days left = 5 days

Let the number of miles that'll be ridden for each day be represented by x.

Therefore, the equation to solve the question will be:

5(x) + 16 = 52

5x + 16 = 52

5x = 52 - 16

5x = 36

x = 36/5

x = 7.2

Therefore, he'll have to ride 7.2 miles per day.

Read related link on:

https://brainly.com/question/25216701

Answer:

y= -x -12

Step-by-step explanation:

change y+x=3 to the form y=-x +3

gradient= -1

*Parallel lines have the same gradient

y-coordinate = gradient (x - x-coordinate)

y-0= -1 (x- (-12))

y=-x-12

Answer:

1.  neither

2. perpendicular

3. neither

4. parallel

Step-by-step explanation:

Remember:   Parallel lines have the same slope and the slope of perpendicular line are negative reciprocals of each other.    Also the slope is the coefficient of the x-term

1.  neither                    

2. perpendicular                            

3. neither

4. parallel

Answer:

x < 3 and x > -1

Step-by-step explanation:

Step 1: Subtract 2 from both sides.

Step 2: Solve absolute value.

Condition 1:

Condition 2:

Therefore, the answer is x < 3 and x > -1.

Answer:

1 dollar

Step-by-step explanation:

It is -5/6

I here is the anwer

Step-by-step explanation:

let the speed of diesel train = x

the equation would be:

(2+6)x = 6(x+15)

8x = 6x+90

8x-6x = 90

2x = 90

x = 90/2

x = 45

Therefore, the speed of diesel train =

45 mph

Answer:

¼ + ¼ √65

Step-by-step explanation:

x= ¼ + ¼ √65

or

¼ + -¼ √65

Answer:

its C

Step-by-step explanation:

Answer:

m is -2 and c is -1

Step-by-step explanation:

• Let's first phrase out the general equation of a line

[tex]{ \rm{y = mx + c}}[/tex]

[ remember that a general line equation must be in slope - intercept form as shown above ]

• from our question, we are given the equation;

[tex]{ \rm{3y + 6x = - 3}}[/tex]

• let's make y the subject in order to make the equation in slope - intercept format.

→ remember to apply "subject making knowledge"

[tex]{ \rm{3y = - 3 - 6x}} \\ \\ { \rm{3y = - 6x - 3}} \\ \\ { \rm{ \frac{3y}{3} = \frac{ - 6x}{3} - \frac{3}{3} }} \\ \\ { \boxed{ \rm{y = - 2x - 1}}}[/tex]

• The above boxed equation is now a general equation. Let's extract out slope, m and y-intercept, c

[tex]{ \rm{m \: \dashrightarrow \: - 2}} \\ \\ { \rm{c \: \dashrightarrow \: - 1}}[/tex]