solve using substitution method

X-7y=10 X=2y​

Answers

Answer 1

Answer: (-4,-2)

(2y)-7y=10

-5y=10

y=-2

X=2(-2)

X=-4

(-4)-7(-2)=10

-4+14=10

10=10


Related Questions

PLEASE HELP IM GIVING ALL MY POINTS
when ms mason bought a new computer she borrowed 1200 at the rate of 18% for 9 months how much interest did she pay

Answers

Answer:

$216 or $162    (see below)

Step-by-step explanation:

If it's 18% for 9 months (and not per year)

then

1200x0.18=$216

If it's 18% per year then

1200x0.18x0.75=$162

Cans of tuna cost $3.00 for 6 ½ ounces. At that rate, how much would 104 ounces of tuna cost?

HELP FOR POSSIBLE BRAINLIEST!

Answers

Answer:

$48.00

Step-by-step explanation:

$3.00 / 6.5 oz = [unknown $] / 104 oz

unknown $ = 104 oz * $3.00 / 6.5 oz

unknown $ = 16 * $3.00 ((oz/oz cancels out))

unknown $ = $48.00

Answer:$48

6 1/2 = 6.5

Step-by-step explanation:

If $3.00 for 6.5 (6 1/2) ounces

(3 x 2 = 6) Then $6.00 is for 13 ounces

(3 x 10 = 30) then $30.00 is for 65 ounces

(3 x 15 = 45) then $45.00 is 97.5 ounces

(3 x 16 = 48) then $48.00 is 104 ounces.

If you multiply the dollars you will also have to multiply the ounces with the same number you multiplied with dollars.

Hope this helps

Mark brainlist if it helps.

What is the value of c in the equation x^15/x^c =x^6

Answers

Step-by-step explanation:

[tex] \frac{ {x}^{15} }{ {x}^{c} } = { x}^{6} \\ {x}^{15 - c} = {x}^{6} [/tex]

15 - c = 6

15 - 6 = c

9 = c

c = 9

Light A flashes every 8 seconds.
Light B flashes every 20 seconds.
Both lights flash at the same time.
Work out how long it will take for both lights to flash at the same time
again.
ASAP

Answers

Answer:

it will take flash a to flash 5 times and flash b to only flash 2 times

Step-by-step explanation:

just trust me

19. Explain the difference
between (-12)^2 and - 12^2.

Answers

with no parentheses in the expression, the answer would be negative. but if theres parentheses separating the negative base and the exponent, the answer is positive.

Factor the expression using 3 as one factor.

3x+15

Answers

3(3)+15 which equals 24

Answer: 3(x+5) ✅

 

Step-by-step explanation:

Hii, do you need to factor the expression 3x+15? No problem! (:

Note that 3x and 15 have a "3" in common.

To factor it out, we can divide 3x and 15 by 3 first.

x+5

Put parentheses around x+5

(x+5)

Now put the 3 that we just factored out outside these parentheses

3(x+5)

--

Hope that this helped! Best wishes.

--

Algebra 2 , what’s the answer ?

Answers

Answer:

what are you looking for???

theres nothing to answer??

Karen is making peach and apple pies. She needs to buy both peaches and apples to make her pies. Apples cost $2 per pound and peaches cost $4 per pound. She has $40 to spend on these ingredients.

If Karen buys 3 pounds of apples, how many pounds of peaches can she buy?

Answers

$2 times 3 pounds of apples = $6
$40-$6= 34 pounds of peaches
karen can buy 34 pounds of peaches.

What is the domain? F(x)= 3x^2-2x-1/ x^2+3x-10

Answers

Domain:
(


,

)
,
{
x
|
x

R
}

The temperature at 3 a.m. was 3 1/2 degrees Fahrenheit. For the next 7 hours, the
change in temperature was 1 1/2 degrees per hour. Which statement correctly
interprets this situation? *
The equation 7(-1 1/2) = -10 1/2 means that the temperature at 10 am, was-10 1/2
degrees Fahrenheit.
The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to
10 a.m. was -10 1/2 degrees Fahrenheit.
The equation 7(-1 1/2) = 10 1/2 means that the temperature at 10 a.m. was 10 1/2
degrees Fahrenheit
The equation 7(-1 1/2) = 10 1/2 means that the temperature change from 3 a.m. to 10
a.m. was 10 1/2 degrees Fahrenheit.
My

Answers

Answer:

The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to  10 a.m. was -10 1/2 degrees

Step-by-step explanation:

Initially, the temperature was 3 1/2 degrees Fahrenheit at 3 a.m. From 3 a.m., the temperature change at 1 1/2 degrees per hour for the next 7 hours. This means that the temperature change in the next 7 hours is:

Temperature change = 7(-1 1/2) = -10 1/2

In the next 7 hours from 3 a.m. to 10 a.m., that is at 10 a.m. (3 a.m. + 7 hours), the temperature change was -10 1/2 degrees Fahrenheit.

Hence:

The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to  10 a.m. was -10 1/2 degrees

m ≥ 15 graph the inequality

Answers

Since the sign is greater than or equal to, it’s a closed circle. I think that means it has a solution. Draw your number line than draw a circle on the 15th line. Make sure the circle is shaded in. Then draw a n arrow a cross the number line, pointing to the right because this equation is say the variable m is greater than or equal to 15

How would you define y-intercept?

Answers

Answer:

The y -intercept is a point of a graph. The y -intercept is  of a graph is the point where the graph crosses the y -axis. The y -intercept is often referred to with just the y -value.

1. Priya can bike 150 meters in 20 seconds.

At this rate, how long would it take her to bike 3,000 meters?

What is her unit rate?

Answers

The answer would be 400 seconds
the answer isss 400 seconds :))

HELP I NEED HELP ASAP

Answers

Answer:

D

Step-by-step explanation:

what line is parallel to y=7x-4

Answers

Answer:

y=7x+2

Step-by-step explanation:

The equation that i gave you is parallel to the one you mentioned

y=7x-z
replace z with any number and it will be parallel

-0.9y+4.4y-3.2y
I need it to be simplified!!!
Plz, help!

Answers

Answer:

0.3y

Step-by-step explanation:

-0.9y+4.4y=3.5y

3.5y-3.2y=0.3y

At Smith's Sporting Goods,3 out of every 10 customers make a purchase. Write a ratio to compare the number of customers who make a purchase to the number of customers who do not make a purchase.

Answers

Answer:

30

Step-by-step explanation:

because 3×10 is 30 and so 3 out of 10 is 30

2 Monke + 2 Monke =

I'll give you 20 Monke points for this
20 Monke points = 10 brainly points​

Answers

Answer:

one monke plus two monke that's 4 monke

Answer:

MONKE SLAP

Step-by-step explanation:

Can someone help pls

Answers

(1.8k-5) + (k+1.5) + (3.5+6.1k) = 53.4
8.9k=53.4
k=6

Divide with long division:
(x^4+9x^3+9x+82) (x+9)^-1

Answers

Answer:

Step-by-step explanation:

Answer: Its simplifying to - x4+9x3+9x+82

x+9

Step-by-step explanation:

HELP PLEASE
which of these graphs represents the residuals for a scatter plot that is fit well by a linear model ?

Answers

Answer:

The Bottom right

Step-by-step explanation:

it looks more scattered, more varied compared to the other 3

The point (4, 5) is translated two units left and eight units down. What is the y-coordinate of the image?​

Answers

Answer:

the new coords are (2,-3) the new y coord is -3

Step-by-step explanation:

Step-by-step explanation:

Of course the new coordinates are (2,-3)

Hope it helps....

'cause you know better.....

Michael sold 24 fruit bars for the band fundraiser he earned $18 for his band uniform how many more fruit bars would he need to sell on order to earn another $5.25

Answers

Answer:

New number of fruits sold = 7 fruits

Step-by-step explanation:

Given:

Total number of fruits = 24

Amount raised = $18

More amount need to earn = $5.25

Find:

New number of fruits sold

Computation:

New number of fruits sold = [24 / 18]5.25

New number of fruits sold = 6.9999

New number of fruits sold = 7 fruits

Which table matches the equation y=5x+2
A.
X -3, 2, 7
Y -1, 0, 1
B.
X 0, 1, -1
Y -2, -3, 7
C.
X -2, -1, 0
Y 10, -5, 0
D.
X -1, 0, 1
Y -3, 2, 7

Answers

The answer is choice D.

Someone please help and makes sure the answer is right please !!!!!!!

Answers

Answer:

D = 36

Step-by-step explanation:

73 + 35 = 108. 108 / 3 = 36. Brainliest pls

I think d=36 let me know if wrong

Nayeli buys some packs of rubber bracelets. There are 8 bracelets in each pack
how many packs of rubber bracelets does nayeli buy if she has the tota of 48

Answers

Answer:

Hey! Ok so the answer is 6.

Step-by-step explanation:

If 1 pack has 8 bracelets in each and she has 48 in total then you would have to divide the total to the number of bracelets in each pack so therefore 48 divided by 8 which is 6

Hoped this helped! Have an amazing day! Im Eve btw. also consider marking this brainliest thank you so much if you do!✨

What is the nth term rule of the quadratic sequence below?
8
,
14
,
22
,
32
,
44
,
58
,
74
,
.
.
.

Answers

8=92
,10=134
‘9=i don’t know about this one

can someone answer this asap :))

^^ all i need is the second one shown in the picture, you don’t have to do #1 :)

also can u please show everything step by step so i can understand? thank you!

Answers

for graphing make sure to shade the right portion and to make the line dotted like (— — — —)
the red is y>8x-4, the blue is y>-1/2x+1/2

2x-.25y < 1 is equal to 2x-1/4y < 1
multiply each side by 4:
8x-y < 4
add y to each side:
8x < 4+y
subtract 4 from each side:
8x-4 < y
rewrite:
y > 8x-4

4x+8y > 4
divide both sides by 8:
1/2x+y > 1/2
subtract -1/2x from each side:
y > -1/2x + 1/2

WILL GIVE BRAINLIEST, PLEASE ANSWER QUICKLY.
Match the original expression containing both fractions and decimals to its equivalent expression containing only
fractions.

Both fractions & decimals: ( ON THE LEFT OF PHOTO)
A. 3/5 x 2.75
B. 3/5 x 0.68
C. 3/5 x 0.8

Equivalent expression: (ON THE RIGHT OF PHOTO)
A. 3/5 x 4/5
B. 3/5 x 17/25
C. 3/5 x 11/4

Answers

A is with3/5 x 11/4
B is with 3/5 x 17/25
C is with 3/5 x 4/5

these two triangles are similar. find the missing length.

Answers

so if we go by fractions, you could say that 6 cm is 6/10ths or 3/5ths so 3/5ths of 25 is 15, for questions like this, when you do something to one part you have to do it to both. hope this helps

Other Questions
What are the advantages of having a dual banking system? (Select all that apply.)Federal-chartered bank examination fees are lower than state-chartered fees.State banks are allowed to act as testing facilities for innovation and change.Federal regulators have greater familiarity with their member banks.It promotes competition and helps combat unfair and deceptive practices. the movement of rock by wind is known as _____can someone help me with this? what is an unit resistance HELP PLEASE ITS DUE IN 10 MINUTES What is the percentage of 65% of 34? Trevor works at a toy factory. Trevor makes 92 toys in four hours. Enter the number of toys Trevor will make in six hours at this rate. Simplify to find the quotients . 24. ) (a ^ 8)/(a ^ 3) Which of the following expressions is equivalent to 4n + 8 Select all of the values of n that satisfy the equation n2 = 64.A.n = 8B.n = 32C.n=(64)D.n=(64)2E.n = 8F.n = 32 1. Which statement about the Spanish-American War is true? A. The war lasted only four months and resulted in fewer than 400 U.S. battle casualties.B. Congress indicated that it was going to war to annex Cuba. C. The war came as little surprise given the fact that William McKinley campaigned in 1896 on a platform favoring imperial expansion. D.Admiral Dewey secured Manila Bay by defeating the Spanish in a bloody three-day battle. E. The treaty that ended the war granted U.S. citizenship to the peoples of the Philippines, Puerto Rico, and Guam. What is the measure of angle 7? 1. Sarah and Maya both need notebooks and pencils. The equation that represents Sarah'spurchases is y = 13- 3x. The equation that represents Maya's purchases is y = 7 -x. If yrepresents the price of notebooks, and x represents the price of pencils, what are the prices ofthe notebooks and pencils?a) pencils: $4 notebook: $3 go to card 4b) pencils: $6 notebook: $1 go to card 3c) pencils: $3 notebook: $4 go to card 5d) pencils: $1 notebook: $6 go to card 7e) pencils: $4 notebook: $4 go to card 2 Para que sirven los modelos matemticos? find an Equation for the perpendicular bisector of the line segments whose in points are (8,3) and (2,-7) David drew a scaled down model of a racquetball court he played on last week what is the actual perimeter of the court david played on last week To create the proper tone for an argumentative essay, writers should ANOTHER 30 POINT LOGS PROBLEMWILL MARK BRAINLIEST Look at the list of Renata's family members and their birthdays. Then, choose the sentence that makes sense for their birthday in the year 2020.Persona: el abuelo de RenataDa del cumpleaos: 11 de marzo de 1957Question 10 options:El abuelo de Renata es mayor que Renata.El abuelo de Renata tiene cuarenta aos.El abuelo de Renata tiene cuatro aos.El abuelo de Renata tiene cincuenta aos. Why Was a dictator chosen to head the government in time of emergency WILL GIVE BRAINLIEST