x + 2y = 9
2x - y = 8

(5,2)
(1,4)
(4,-1)
(5, -2)
which one is it?

Answers

Answer 1

Answer:

(5,2)

Step-by-step explanation:

when you plug them in they appear true!


Related Questions

slope is 2/3 y- intercept is -2

Answers

Answer:

y = (2/3)x - 2

Step-by-step explanation:

The equation of this line is y = (2/3)x - 2, where m is the given slope and -2 is the given y-intercept.  We need only plug in the given values for m and b.

Answer:

[tex]y = \frac{2}{3} x -2[/tex]

Step-by-step explanation:

This is the slope-intercept form. The slope-intercept form is written as y = mx + b where m is the slope and b is the y-intercept. The y and x stay as they are.

I hope this was what you were looking for.

Patryk has 7 cards.
There is a number on each card.
2 3 4 5 6 7 8
Patryk takes two of the cards at random.
He works out the product of the numbers on the two cards.
Work out the probability that the product is an odd number.

Answers

Answer:

Probability that the product is an odd number =  [tex]\frac{1}{7}[/tex]

Step-by-step explanation:

Given - Patryk has 7 cards.  There is a number on each card.  2 3 4 5 6 7 8

            Patryk takes two of the cards at random.  He works out the product  

            of the numbers on the two cards.

To find - Work out the probability that the product is an odd number.

Proof -

As we know that Product of two numbers is odd iff both the numbers are odd.

So, we have to find the probabilty that both the card that Patryk choose is odd

Now,

Total number of cards = 7

Total number of odd cards = 3

So, Probability = ³C₂ / ⁷C₂

                       = [tex]\frac{3!}{2! (3-2)!}. \frac{2! (7 - 2)!}{7!}[/tex]

                      = [tex]\frac{3!}{2! (1)!}. \frac{2! (5)!}{7!}[/tex]

                      = [tex]\frac{3!}{(1)!}. \frac{ (5)!}{7.6.5.4.3!}[/tex]

                      = [tex]\frac{ 5.4.3.2.1}{7.6.5.4}[/tex]

                      = [tex]\frac{1}{7}[/tex]

∴ we get

Probability that the product is an odd number =  [tex]\frac{1}{7}[/tex]

A book cost $10 at one book store.About how much more does the book cost when the book store increase it prices 18%.

Answers

Answer:

11.8

Step-by-step explanation:

18% of 10 so more the decimal only one time because you only have one 0 and you get 1.8. ok then 1.8 to 10 =11.8

The book cost $11.8  when the book store increases its prices by 18%.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, A book cost $10 at one book store which is 100% of its price.

Now, The book store increases its prices by 18%.

Therefore, The new price of the book is (100 + 18) = 118% of $10 which is,

= (118/100)×10.

= 1.18×10.

= $11.8

learn more about percentages here :

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A circle has a radius of 5 cm.
Diagram NOT
accurately drawn
5 cm
Work out the area of the circle.
Give your answer correct to 3 significant
figures.

Answers

Answer:

78.5

Step-by-step explanation:

pi r^2

22/7 * 5^2

Answer:

area = 78.540 cm ^2

Step-by-step explanation:

area = Pi (radius^2)

area = 3.14159(5^2) = 3.14159(25) = 78.5397

1. Solve the following expression if b=8. 10 b2(2=squared)​

Answers

Answer:

640

Step-by-step explanation:

In order of operations, do exponents before multiplying.

8 squared= 64

64 x 10=640

1. -5(-4/7)=
2. 2(-3)=
3. -2(-2.6)
4. -5(0.8)

Answers

1. 20/7 or 2.857
2. -6
3. 5.2
4. -4

cylinder a has a height of 8 cm cylinder b has a height of 12 find the surface area​

Answers

Answer:

You can't answer the question. It is missing essential information. What is the radius of the circle at the end of the cylinder.

Step-by-step explanation:

have a good day

Tell whether the triangle with the given side lengths is a right triangle.
3.6 mm, 7.7 mm, 8.4 mm
The triangle is a right triangle.
The triangle is not a right triangle.



HELP QUICKLY

Answers

Answer:

Monkey says NO

Step-by-step explanation:

Monkey says A^2 + B^2 = C^2. Monkey do math, gets C = 8.5. So close, monkey sad. Not right triangle.

A group of workers can plant 2/5 acres in days.3/4 What is the unit rate in acres per day?

Answers

Answer:

8/15

Step-by-step explanation:

Unit rate is 8 / 15 acres per day.

What is work?

"Work is defined as when force is applied on an object and it gets move in particular direction."

According to the question,

Group of workers plant  2/ 5 acres  in 3 /4 days

3 / 4 days = 2/ 5 acres

1 day =  [tex]\frac{2}{5}[/tex] × [tex]\frac{4}{3}[/tex]

⇒ 1 day = 8 / 15 acres

Hence, Unit rate is 8 / 15 acres per day.

Learn more about work  here

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HELP ME OMG I ONLY HAVE 2 mins

Answers

The correct answer is the 3rd one
The correct answer is what the person above me said

. 238/x = 17

HELP OMG HELP!!!!

Answers

Answer:

Step-by-step explanation:

Answer:x = 14

My Step-by-step explanation:

Turn the problem around by switching around the division:

238/x=17 means 238/17=x so x = 14.

How Many texts?please help.

Answers

Answer:

176

Step-by-step explanation:

91/9.10=0.10

17.60/0.10=176

Answer:

176

Step-by-step explanation:

7b / b (when b = 2)
ANswer please

Answers

Answer:

7

Step-by-step explanation:

7b/b = 7...(b does not matter)

I think that the answer would be 7 because 7(2)/2 would be 14/2 resulting in 7.

Can someone answer this for me pls I need help rly bad

Answers

Answer:

the answer is y= 2/1x + 10

in QRS the measure S=90ft the measure Q=79ft and RS=63ft find the length of QR to the nearest tenth of a foot

Answers

Answer:

64.2

Step-by-step explanation:

im not sure

If you toss a coin and spin the spinner, what is the probability of landing on heads and spinning blue?

Answers

Answer:

Step-by-step explanation:

There are two sides on a coin, heads and tails. So, the probability  of flipping heads is going to be 1/2, as there is one chance out of the two options that you will flip a head. As for spinning blue, there are 3 options that are blue out of the four color options given. So, the probability of spinning blue would be 3/4. Hope this helped :) Take this with a grain of salt, though. It's been a while since I reviewed probabilities.

The required probability of landing on heads and spinning blue is 3/4.

What is probability?

Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.

There are two sides to a coin, heads, and tails.

So, the probability of flipping heads is going to be half, as there is one option out of the two options that you will flip a head.

As for spinning blue, there are three choices that are blue out of the four color options given.

So, the required probability = favorable outcomes / total outcomes

So, the required probability = 3/4

Hence, the probability of spinning blue would be 3/4.

Learn more about probability here:

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what is -2y + 10 +2y -8 simpilified?​

Answers

Answer:

2

Step-by-step explanation:

-2y+10+2y-8

-2y+2y+10-8

10-8

2

Answer:

2

Step-by-step explanation:

-2y and 2y cancel each other. That leaves you with 10-8=2

15 minutes left please help me with math

Answers

Step-by-step explanation:

B=tan⁻¹(9÷22)

B=22.2

C=180-(97+22.2)

C= 180- 119.2

C= 60.8

what is r + 3/4 = 7/8

Answers

Answer:

r + ¾ = ⁷/₈

r = ⁷/₈ - ¾

⁷/₈ - ⁶₈ = ¹/₈

r = ¹/₈

Step-by-step explanation:

but my original answer was 4/4

Simplify the algebraic expression by combining like terms. Using algebra tiles might be helpful.
Link to Algebra Tiles
5x - 4 + x + 8 + 2x

Answers

Answer:

8x + 4

Step-by-step explanation:

Simplified

group like terms: (+5x + 1X + 2x) = 8x (-4 + 8) = 4 add the positive sign so you can get an equation: +4, so your simplified expression would be 8x + 4

Simplify all like terms:

8x + 4

Hope this helps!!

6 - 3x = -6 PLEASE ANSWER FAST I NEED HELP!!!

Answers

4 is the answer hehehe

Answer:

4

Step-by-step explanation:

Subtract 6 to both sides so you can get -12. Next divide -3 from x and -12. Finally your answer should be positive 4. Mark me brainily please if it is correct

At Mr. Bill's Bike Shop it costs $3 per hour plus a $4 deposit to rent a bike. At Action
Wheels it costs $2 per hour plus a $7 deposit to rent a bike. The total cost, c, of renting a
bike for h hours at either bike shop can be represented by an equation. Write and solve a
system of equations to find how many hours each shop will have the same cost.
P
A. Write the system of equations based on the situation above.
B. Graph (Include: title, labels, points, lines and arrows)
YA
16
15
14
13

Answers

System of Equations:

c = -3h - 4

c = -2h - 7

Graph in Attached Image :-)

hey please help, in your own words, what is a radical expression?

Answers

A radical expression has to do with finding the square root, or the factors of a number. However these factors are the same number, which is why a radical expression is different from a regular divisions equation. (hope this helped :) )

can someone help me please

Answers

Answer:

11. Jason needs to sell 35 bird feeders to make a profit of $135.12. 80 guests must attend the picnic to pay for the permit.

factor tree 50 and 75 math

Answers

Answer:

2 x 25 (50)

3 x 25 (75)

Step-by-step explanation:

please condense and/or solve and show work. 2log base 2 of x +log base 2 of 4=6

Answers

2Log₂(x) + Log₂(4) = 6

2Log₂(x) + Log₂(2²) = 6

2Log₂(x) + 2 = 6

2Log₂(x) = 6-2

2Log₂(x) = 4
devide both side to 2

Log₂(x) = 2

2² = x

x = 4

Each employee in a company is either right-handed or left-handed.

32 of the 54 employees are female.

18 of the 41 right-handed employees are male.

Complete the frequency tree for this information.

right-handed

32

left-handed

female

54

18

right-handed

left-handed

male

Total marks: 3

Answers

Answer:

Right handed 41

Right handed male 18

Right handed female 23

Male employees 22

Female employees 32

Left handed 13

Left handed male 4

Left handed female 9

Can someone please help me out with this

Answers

Answer:

hope it helps

y=2x+1
How do I put this equation in order pair for a table

Answers

Answer:

I think you would have to draw lines like is the graph book, you will see that they have two axes which is the y and the x.You will then have to fix in numbers and indicate the y= 2x+1.

Step-by-step explanation:

hope it helps

help me with this answer please

Answers

Answer:

(0,1)

Step-by-step explanation:

0 because its intercept at 0 x-axis

1 because its intercept at 1 y-axis

also it is written in this way (0,1) because we write first the number on x-axis then y-axis

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