5x + 6y = 20 , 8x - 6y = -46

Answers

Answer 1

Answer:

5x + 6y = 20_____(1)

8x - 6y = -46_____(2)

Solving simultaneously:

Eqn(1) + Eqn(2)

5x + 8x + 6y + (-6y) = 20 + (-46)

13x = -26

x = -2

substituting this into Eqn (1):

5(-2) + 6y = 20

-10 + 6y = 20

6y = 30

y = 5

hence:

x = -2,y = 5.


Related Questions

if the length of the football field is 100 yards and the width is 53.3 yards what is the area

Answers

Answer:

It is 533 yards

Step-by-step explanation:

SImply multiply the length and the width of the football field to get it's area. 100 times 53.3 is 533 yards.

Answer:

5,330 yards^2

Step-by-step explanation:

Area = lw        (length x width)

53.3 x 100= 5,330

Therefore, the area of the football field is 5,330 ft ^2

transformation mystery picture​

Answers

Answer:

1  9

6  -2

-12  10

4  3

9  -5

3  -8

-4  6

-4  -3

-1  2

2  7

-18  -15

6  -3

-7  -6

-2  21

-5  5

2  2

Step-by-step explanation:

Find the sum of the interior angle measures of a regular polygon
with 17 sides

Answers

Answer:

2700

Step-by-step explanation:

the formula is (n - 2) 180

A stand at a farmer's market sells three different types of apples. The table below shows the cost and weight of the apples.

Answers

Answer:

and what are the numbers there bud

Answer:

Please show the table I cannot help with no info!

Step-by-step explanation:

what is the answer ​

Answers

6576576576576475463543543653 is the answer:)

Nicole filled her tank for $38.50 for 21.5 gallons. How much did Nicole spend per gallon? (Write your answer with 2 decimal places)

Answers

Answer:

$1.79 per gallon, I believe.

Step-by-step explanation:

No cappin need help thx

Answers

Answer:

20 %

Step-by-step explanation:

Percentage = [tex]\frac{2}{10}*100[/tex]

                   = 2 * 10

                   = 20%

how do you find a proportional relationship in a table?

Answers

AnsweTo see if multiple ratios are proportional, you could write them as fractions, reduce them, and compare them. If the reduced fractions are all the same, then you have proportional ratios.r:

Step-by-step explanation:

Answer:

You can find a proportional relationship in a table by seeing if there is a pattern like 1,5 or 2,10.

Step-by-step explanation:

The model shows the expression 219 Which expression is equivalent to this sum? O 3(7+3) O 307)+ 3 O 3+7+3 O 7(3+3) Mark this and retum Me​

Answers

Answer:

a

Step-by-step explanation:

What is the answer to f(x)=2x+28?

Answers

x is equal to -14 if your solving for x

e and also buy tickets they can use for food or rides. Gwen pays the entry fee and buys 10 tickets. It costs her a total of $30. Tristan pays the entry fee and buys 15 tickets. It costs him a total of $40. Keith pays the entry fee and buys 10 tickets. It costs him a total of $30. In this task, you will create a system of equations and find the cost of each ticket. Let x represent the entry fee and y represent the cost of each ticket in dollars. Write an equation representing how much Gwen paid, Write an equation representing how much Keith paid.

Answers

Answer:

For Gwen:-

x + 10y = 30

x + 15y =  40       - Tristan

if we subtract the above equations:-

we get

5y = 10

y = 2

That is the cost of each ticket is $2.

Step-by-step explanation:

Answer:

Keith & Gwen Paid: y=10x+30

Tristan Paid: y=15x+40

Step-by-step explanation:

now gimmie my Ford Super Duty F-250 12'

Help please geometry 10 points

Answers

Answer:

15) LKJ congruent YZX 16) VXW Congruent PRQ

Step-by-step explanation:

This is the answer

The function q = 230,000 -28p is a demand function which expresses the quantity demanded of a product q as a function of the price charged for the product p, stated in dollars. Determine the restricted Domain and Range of the function.

Answers

Answer:

D=[0, 8 214.29]

R=[0, 230 000]

Step-by-step explanation:

In order to find the domain, we must think of the least price you can give to the product you are selling. The price cannot be less than zero, since that would mean that you are giving money to the consumer for taking the product away, so zero is the smallest value p can get.

The greatest value the price can get is the one such that the quantity demanded is zero. So we need to determine that price by setting the equation equal to zero and solving for p.

230,000-28p=0

so we get

-28p=-230,000

[tex]p=\frac{-230,000}{-28}[/tex]

so

p=$8,214.29

so the restricted domain for this function would be:

[tex]0\leq p \leq 8,214.29[/tex]

or in interval notation:

D=[0, 8 214.29]

In order to find the range, we just need to determine what's the least and greatest value the function can get. Since this is a linear function, we can find them by just substituting each of the extreme values of the domain in the function, so we get:

q=230,000-28(0)=230,000

q=230,000-28(8214.29)=0

so the range would be:

[tex]0\leq q \leq 230,000[/tex]

or in interval notation:

R=[0, 230 000]

Hello! Can anyone please help me? The topic is angles.​

Answers

Answer:

29/4   or   7.25

Step-by-step explanation:

Complimentary angles are two angles that add up to 90

Supplementary angles are two angles that add up to 180

Angle ABC = x

Angle CBD = 7y + 4

Angle DBE = 8y + x

If we can find the measure of angle CBD, then we can find x.

We know that CBD + DBE = 180  because they are supplementary. Therefore...

(7y + 4)  +  (8y + x)  =  180

      AND

(7y + 4)  +  (x)  = 90

Now we can use algebra to solve for x and y...

Blah blah blah...

x  =  29/4

y  =  45/4

how to solve for these

Answers

9514 1404 393

Answer:

  1.  f = 9/a +7

  2.  x = (y -5)/3

  3.  x = 3/(y +2)

  4.  l = (P +9)/4

Step-by-step explanation:

I find it convenient to use the fact that a=b/c can be rewritten as c=b/a:

  [tex]a=\dfrac{b}{c}\qquad\text{given}\\\\ac=b\qquad\text{multiply by $c$}\\\\c=\dfrac{b}{a}\qquad\text{divide by $a$, effectively swapping $a$ and $c$}[/tex]

__

1. f - 7 = 9/a . . . . use the above shortcut

  f = 9/a +7 . . . . add 7

__

2. y -5 = 3x . . . . . subtract 5

  x = (y -5)/3 . . . . divide by 3

__

3. y +2 = 3/x . . . . add 2

  x = 3/(y +2) . . . . use the above shortcut

__

4. P +9 = 4l . . . . add 9

  l = (P +9)/4 . . . divide by 4

If a rectangular prism has a length width and height of 38 cm 58 cm in 78 cm respectively in the volume of the prism is blank cubic centimeterk

Answers

Answer:

7 but not sure

Step-by-step explanation:

30 POINTS please help I really need help :(((((((
During photosynthesis, plants take in carbon dioxide causing its concentration in the atmosphere to ___________.
a) increase
b) decrease

If more airplanes and cars are used (both of which burn fossil fuels), carbon levels will increase.

Group of answer choices

True

False

Answers

Answer:

u said 30 points

Step-by-step explanation:

Answer:

a) increase

b) true

Step-by-step explanation:

Hope this helps plz hit the crown:D

An item cost $450 before tax and the sales tax is $13.50. Find the sales tax rate. Write your answer as a percentage.

Answers

Answer:

3%

Step-by-step explanation:

If an item cost $450 before tax and the sales tax is $13.50 then the sales tax rate is 3%.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that An item cost $450 before tax

The sales tax of the item is $13.50

We have to find the sales tax rate in percentage

To find the percentage we have to multiply x/100 with four hundred fifty which is equal to thirteen point five

x/100×450=13.5

4.5x=13.5

Divide both sides by 4.5

x=13.5/4.5

x=3%

Hence, if an item cost $450 before tax and the sales tax is $13.50 then the sales tax rate is 3%.

To learn more on Percentage click:

https://brainly.com/question/24159063

#SPJ2

Jenny bought a pair of pants for $19.99 and two shirts for $7.50. If she gave the cashier 40 dollars how much change did she receive. Assume there are no tax sales

Answers

Answer:

Jenny will receive $12.51 in change.

Step-by-step explanation:

We need to find the total cost first.

19.99 + 7.50 = 27.49

We then subtract that from the 40 dollars she gave to get the amount of change she receives.

40.00 - 27.49 = 12.51.

She will receive $12.51 in change.

hope this helped!  

Jenny will receive $12.51 in change.

We have given that the Jenny bought a pair of pants for $19.99 and two shirts for $7.50.

We need to find the total cost first.

What is the total cost?

Total cost=price of pants +price of shirt

19.99 + 7.50 = 27.49

We then subtract that from the 40 dollars

She gave to get the amount of change she receives.

So we have to subtract the total cost from 40 so we get,

40.00 - 27.49 = 12.51.

She will receive $12.51 in change.

To learn more about the cost visit:

https://brainly.com/question/25109150

Samantha invested $40,500 at 6% to be compounded annually. What will be the value of Samantha's investment in 3 years? Round your answer to the nearest cent. Note: Assume 365 days in a year and 30 days in a month.

Answers

Answer:

7.45

Step-by-step explanation:

WILL GIVE BRAINLIEST FOR EXPLANATION!!!!!! AND ANSWER!
How does the graph of g(x) = −(x + 3)4 compare to the parent function of f(x) = x4?

Answers

Answer:

you cant give brainliest you have to earn it

Answer:

The graph will be flipped and move 3 units to the left

Step-by-step explanation:

Parent function: f(x) = x^4

Graph: g(x) = −(x + 3)^4

Compared to the parent function, g(x) will be flipped because of the negative coefficient and move 3 units to the left because of (x+3).

The slope of a line is a number we can calculate using any two points on the line. To find the slope, divide the____ distance between the points by the _____ distance.
i need the blanks

Answers

Answer:  To find the slope, divide the__Y__ distance between the points by the __X___ distance.

Step-by-step explanation: The formula is (Y2-Y1)/ (X2-X1)

3/4+2/6 please answer this problem​

Answers

Answer:

1 1/12

Step-by-step explanation:

find common denominator:

3/4=9/12

2/6=4/12

add:

9/12+4/12=13/12

simply:

13/12=1 1/12

hopefully this helps :)

Work out the multiplier as a decimal number for an increase of 5% followed by an increase of 3%

Answers

Answer:

8% multiped by what ever the decimal is

Step-by-step explanation:

5% + 3% = 8%

the lenght of a rectangle tile is 24 cm and its breadth is 40 mm find its area in square mm​

Answers

Answer:

area=length*breadth

area=24*40

area=960sqare m

if we convert 960m to mm it will be 960000mm

final answer area=960000 square mm

To make rice, you mix 1.5 cups of water for every 1 cup of dry rice. This will make 2 servings. How many cups of dry rice and how many cups of water will you need to serve 10 people?

Answers

Answer:

7.5 cups of water

5 cups of dry rice

Step-by-step explanation:

In total 1.5 water and 1 cup rice will equal 2 servings. If you are serving 10 people, you need to multiply each by 5.

Can you please help me with this

Answers

Answer:

log9

Step-by-step explanation:

Using the rules of logarithms

logx + logy = log(xy)

logx - logy = log([tex]\frac{x}{y}[/tex])

log[tex]x^{n}[/tex] ⇔ nlogx

Given

2(log18- log3) + [tex]\frac{1}{2}[/tex]log[tex]\frac{1}{16}[/tex]

= 2(log([tex]\frac{18}{3}[/tex] ) ) + log[tex](\frac{1}{16}) ^{\frac{1}{2} }[/tex]

= 2log6 + log[tex]\frac{1}{4}[/tex]

= log6² + log[tex]\frac{1}{4}[/tex]

= log36 + log[tex]\frac{1}{4}[/tex]

= log( 36 × [tex]\frac{1}{4}[/tex] )

= log9

1, 2 after a reflection y = 0 followed by a reflection y = 2

Answers

Answer: ahhhhhummm I think it’s 5

Step-by-step explanation:

Answer:

(1,6)

Step-by-step explanation:

First you would reflect over y=0. Whenever you reflect over y=0, the y-coordinate will be multiplied by -1, so it changes to (1,-2). (1,-2) is 4 coordinates below the line y=2, so when reflected over y=2, the coordinate will be 4 above y=2, which means that the coordinate will be (1,6)

How much is 4 times 4?

Answers

Answer:

16 :D

Step-by-step explanation:

4 * 4 = 16

Answer:

16

Step-by-step explanation:

4x4=16

Hope this helps.

there are 3 alligators, 16 turtles, and 12 snakes in the reptile exhibit at the zoo. what is the ratio

Answers

Answer: 3:31= alligators to total animals. 16:31= turtles total animals. 12:31= snakes to total animals.

Step-by-step explanation:

3+16+12=31 the total

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