2x - 3y = 2, 4x + 7y = -9.​

Answers

Answer 1

Step-by-step explanation:if you like it press thank you

2x-3y=2 4x+7y= -9

2x=2+3y

2x=2+3y

2 2

x=2+3y 4(2+3y) + 7y= -9

2 2

8+12y + 7y= -9

2

8+12y+14y = -9

2

8+12y+14y= -18

26y= -26

26y = -26

26 26

y= -1

4x+7(-1)= -9

4x+(-7)= -9

4x-7= -9

4x = -2 now lets check,4(-1) + 7(-1)= -9 or 2(-1)-3(-1)=2

4 4 2 2

x=-1 -4 +(-7) = -9 -1-(-3)=2

2 2 -1+3=2

-2-7= -9 2=2

-9= -9

so the answer is x= -1 and y= -1

2


Related Questions

In AWXY, W = 4.8 inches, x = 7.2 inches and y=9.3 inches. Find the measure of ZW
to the nearest degree.

Answers

Answer:

31

Step-by-step explanation:

trust me

Answer:

31

Step-by-step explanation:

W=30.584≈31

A cashier at Giorgio's Grocery Store gets paid $8 per hour for shifts of 6 hours or less and $12 per hour for working shifts over 6 hours long. Which function best represents this situation?

Answers

Given :

A cashier at Giorgio's Grocery Store gets paid $8 per hour for shifts of 6 hours or less.

And $12 per hour for working shifts over 6 hours long.

To Find :

A function best represents this situation.

Solution :

Let, number of hours is h and amount paid is y .

For, h ≤ 6

y = 8h

For, h > 6

y = 12h

Therefore, function representing this is :

y( h ) =  8h  , x ≤ 6

            12h , x > 6

Hence, this is the required solution.

equivalent expression: 26a - 10

Answers

Answer:

2(13a-5)

Step-by-step explanation:

Factor 2 out of both numbers and place it in front

which statments are true about a , b, and c? check all that apply.

Answers

Answer:

I can’t see the question answers

Step-by-step explanation:

Answer:

?

Step-by-step explanation:

Chris rode his bike 4 miles west and then 3 miles south. What is the
shortest distance he can ride back to the point where he started?

Answers

Answer:

5 miles

Step-by-step explanation:

This is because if you draw a line going west and label it as 4 miles, then draw another line going south and label it 3 miles, you form a right angle, right? So, the fastest way to go back would be taking a diagonal-like route back to the beginning. Does this shape look familiar to you? Right! It's a right triangle. And do the numbers 3, 4, and 5 sound familiar to you? Yup, it's a Pythagorean triplet. If the legs of a right triangle are 3 and 4, the hypotenuse is 5. Why am I saying this? Because, in the drawing you just did, the 4 miles west and 3 miles south were the legs, and the diagonal path back to the beginning is the hypotenuse. Get it now?

Happy to help! :)

Colin & Brian share a lottery win of £2100 in the ratio 4 : 1.
Colin then shares his part between himself, his wife & their son in the ratio 2 : 5 : 3.
How much more does his wife get over their son?​

Answers

Answer:

2

Step-by-step explanation:

I think but am not sure sorry I can not help

A bottle of italian salad contains 0.7 grams of sugar. How many milligrams of sugar are in 6 bottles of italian salad dressing

Answers

Answer:

420mg

Step-by-step explanation:

0.7x6 = 0.42g which is 420mg

1g = 1000mg

PLEASE HELP QUICK (13 points)

A new laptop costs around $850. What
is a reasonable amount of sales tax you
would expect to pay (estimate)?

Answers

Answer:

Depends on your sales tax rate where you live.

Lets call your sales tax rate X%

then it would be multiplied b y the $850 and that would be added back to the $850.

Example:

If your sales tax rate were 10%

then it would be .10 x $850 =$85

Now add the $85 to the $850 and your total would be $945

P.S. Some localities offer sales tax free weekends for school supplies.

Step-by-step explanation:

is 5x^7 monomial?
please help :(

Answers

Answer:

No, it is a binomial.

Step-by-step explanation:

A Purse cost $75.00 at Macy’s with a 25% discount. What is the sale price with 7% tax?

Answers

Answer: $60.1875

Step-by-step explanation:

Since we are told that a purse cost $75.00 at Macy’s with a 25% discount. The sale price will be:

= $75 - (25% × $75)

= $75 - (0.25 × $75)

= $75 - $18.75

= $56.25

We will then add the 7% tax and this will be:

= $56.25 + (7% × $56.25)

= $56.25 + (0.07 × $56.25)

= $56.25 + $3.9375

= $60.1875

5 and2/3 divide by 4?

Answers

Answer:

The answer is 1 5/12 or 17/12.

Step-by-step explanation:

First we turn 5 2/3 into a Improper fraction.

5 2/3 = 17/3

Next we change 4 to 1/4 then multiply 1/4 by 17/3.

17/3 * 1/4 = 17/12

17/12 = 1 5/12

Hope this helps! :)

Answer:

17/12

Step-by-step explanation:

5[tex]\frac{2}{3}[/tex] / 4 = [tex]\frac{17}{3}[/tex] / [tex]\frac{4}{1}[/tex] = [tex]\frac{17}{3}[/tex] * [tex]\frac{1}{4}[/tex] = 17/12

HELP MEEEEEEEEEEEEE PLEASEEEEEEEEEEEEEEEE

( 6 x 7- 22 ) + 7

And ik it's not 27

Answers

Answer:

The answer would be 13

Step-by-step explanation:

(6 x 7 - 22) - 7

(42 - 22) - 7

(20) - 7

13

y is directly proportional to the square root of x
If y = 32 when x = 64 find,
y when x = 25

Please help​

Answers

Answer:

y = 20

Step-by-step explanation:

Given y is directly proportional to [tex]\sqrt{x}[/tex] , then the equation relating them is

y = k[tex]\sqrt{x}[/tex] ← k is the constant of proportion

To find k use the condition y = 32 when x = 64, then

32 = k[tex]\sqrt{64}[/tex] = 8k ( divide both sides by 8 )

4 = k

y = 4[tex]\sqrt{x}[/tex] ← equation of proportion

When x = 25, then

y = 4[tex]\sqrt{25}[/tex] = 4 × 5 = 20

How to solve Y=-1/3x+7

Answers

Answer:

x+3y=21 in standard form

x+3y=21 , i hope its right

I REALLY NEED HELP!!! PLEEEEEASE

A landscaper needs to fill a path measuring 2 feet by 8 feet with patio stones.
The patio stones are each 1 foot by 2 feet, so the landscaper calculates that she
will need 8 of them.
Before arranging the patio stones, the landscaper wants to look at all her options.
She can not cut or overlap the stones, and they all must fit inside the path area
without any gaps. Two possible arrangements of the stones are shown below.
How many different arrangements are there in total?

Answers

Answer:

I think its 4.

Step-by-step explanation:

Need this asap, thanks in advance :)

Answers

Answer:

non linear

Step-by-step explanation:

help me plz bc i don't understand this and this is from 2 weeks ago and I have straight F's in school

Answers

bae what you failing

Answer:

y = -3x + 3

Step-by-step explanation:

So, basically I can't remember how to do this the long way but I used a calculator on Desmos (the graphing one to be specific). You should be able to find tutorials on how to use it and graph problems to find their answers but if not, you can just message me and I'll walk you through how to use it.

As for the form it asked for in the question, slope-intercept form is just:

y = mx + b

m is the slope, and b is the y-intercept (the place where the line crosses the y-axis)

Which descriptions of the figure MUST be true? Select all that apply.

Please help me

Answers

The true description of the figure here are:

x = 8MN = 52D

How to solve for the proof of the figure

We have x to be = 8

The value of MN is said to be 5x + 12

We have to see if 5x + 12 = MN = 52 given that X is 8

We then insert the value

5 * 8 + 12 =

40 + 12 = 52

Hence it is confirmed that the value of x is 8, and MN is 52.

Read more on geometry here:

https://brainly.com/question/24375372

#SPJ1

Answer:

a. 8

c. 52

d. KL≅ ML

Step-by-step explanation:

help [7.3 - 0.24 + (5 - 2.3 )] - (1.37 + 0.982 =

Answers

Answer:

2.8

Step-by-step explanation:

[7.3-0.24+(2.7)]-(2.352)

[7.3-2.94]-(2.352)

[4.36]-(2.352)

2.008

correct answer gets brainliest

Answers

Answer:

1.) 12³

Step-by-step explanation:

side = 12 ft

volume of cube = side³

----------------------------------follow me

Answer:

first option

Step-by-step explanation:

The volume (V) of a cube is calculated as

V = s³ ( s is the side length )

Here s = 12, then

V = 12³

What fratcion is equal to 50% of 1 third

Answers

Answer:

1/6

Step-by-step explanation:

To know what fraction is equal to 50% of 1/3, we have to convert the percentage into a fraction first.

50% = 50/100

So 50% of 1/3 = 1/3 * 50/100

= 50/ 300

= 5/30

= 1/6

Answer:

1/6

Step-by-step explanation:

The diameter of a circle has endpoints of (2, 5) and (-4, 13). What is the correct equation of this circle? Pls explain and I will mark brainliest!

Answers

Answer:

Option 4

Step-by-step explanation:

Midpoint of the diameter is the center.

Use midpoint formula to determine the coordinates:

x = (2 - 4)/2 = -1y = (5 + 13)/2 = 9

Find the radius using the midpoint and one of the endpoints and the distance formula:

r = [tex]\sqrt{(-1 - 2)^2 + (9 - 5)^2} = \sqrt{9+16} = \sqrt{25} = 5[/tex]

Use the equation of the circle:

(x - (-1))² + (y - 9)² = 5²(x + 1)² + (y - 9)² = 25

Correct choice is 4

Which of the following statements uses the commutative property of addition?

A) 2+(3+4)=(2+3)+4
B) 2+(3+4)=(2+3)+(2+4)
C) 2+(3+4)=2+(4+3)

Answers

Answer:

B

Step-by-step explanation:

Linda's dog ate 6 cans of dog food this week. Each can contained 44.7 grams of protein. How much protein was this in all?

Answers

Answer:

268.2 grams

Step-by-step explanation:

44.7 times 6

please mark brainliest

The spinner below is spun 1 time and the number cubes is rolled 1 time. What is the probability of the spinner landing in a green and rolling a number less than 3?

Answers

Answer:

unlikely

Step-by-step explanation:

because the sooner is only spun once while the cube is only roles once as well.

The length of the rectangle is 6 feet. The width is three times the length. What is the total area of the rectangle?

Answers

i believe the answer would be 108

Answer:

should be A=108

Step-by-step explanation:

6 times 3 = 18

A=LxW

6x18=108

decimal greater than 1% but less than 2%

Answers

Answer:

1.5%

Step-by-step explanation:

Answer:

1.5% of 100=1.5is your answer

Mike took a taxi from his home to the airport. The taxi driver charged an initial
fee of $6 plus $3 per mile. The total fare was $24, not including the tip. How many
miles did mike travel by taxi on this ride?
A. 2
B. 6
C. 8
D.10

Answers

Answer:

B. 6

Step-by-step explanation:

SInce the total amount paid by Mike was $24, you subtract the initial amount he paid ($6) which leaves you with $18. Since the taxi driver charges $3 per mile you divide $18 by $3 to get 6 so that means Mike travel 6 miles.

The answer would be ~6~ because 6+3*x= 24 which x=6

Hope this helps

Have a great day/night

Feel free to ask any questions

Jill works on the weekends. Last saturday, she worked 5.75 hours. Sunday she worked 6.75 hours. she earn $7.50 per hours. How much did she earn last weak​

Answers

93.75 because 5.75x7.50=43.125 and 6.75x7.50=50.625 and 50.625+43.125=93.748 and round it to the near test hundredth because it’s money and that’s 93.75

Which phrase represents this expression?

14+(9−2)

Select each correct answer.


14 added to the difference of 9 and 2

the total of 14 and 9 is subtracted by 2

the sum of 14 and the difference of 9 and 2

2 less than the sum of 14 and 9

Answers

14 added to the difference of 9 and 2 is the correct answer because first 2 is being subtracted from 9 and then 14 is added

Answer:

the sum of 14 and the difference of 9 and 2

14 added to the difference of 9 and 2

Step-by-step explanation:

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