Mathematics High School

2x - y = 17
x- y = 10

Answers

Answer 1

Answer: x = 7, y = -3

Step-by-step explanation:

2x - y = 17

x - y = 10 —> x = y + 10

2(y + 10) - y = 17

2y + 20 - y = 17

y + 20 = 17

-20 -20

y = -3

x = y + 10

x = (-3) + 10

x = 7

Related Questions

Which expression is equivalent to the expression shown?
3(x-6) + 4x + 18
A 7x
B 7x+ 12
C 5x
D 5x+ 12

Answers

Answer:

=7x

Step-by-step explanation:

PLEASE HELP ASAP!!
Solve for x.

Answers

x=4 and that it's the answer

I need help on 3-4 and body know? And I need an explanation.

Answers

Answer:

a 90

b 90

a 8x+40

b 4y-36

c -6n-3

d 7x+7

e -10x+30

f 4/1x+2/1

Alright, this is a lot.

This start with the first question (3)

Find the product of 5(18) and 5(18) = 90

To get that is 5(18) = (5 x 18 = 90)

So now we have to do the math for both A and B and find out which one is 90

A 5(10+8) : 10 + 8 = 18 so (a) = 5(18)
B 5(20-2) : 20 - 2 = 18 also well

I think (a) would be your best bet. For question (3)

Alright question 4

(a) = 8x + 40
(b) = 4y - 36
(c) = -6n - 18
(d) = 7x + 7
(e) = 30-10x
(f) = 4x + 2

Hope this helps in any way. Tell me if It's right

Calculate the slope of the line that passes through (2,5) and (12, 10). Reduce answer to lowest terms if necessary.

Answers

Answer:

1/2

Step-by-step explanation:

Slope equation:

y2 - y1

--------

x2 - x1

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

10 - 5         5.        1

--------  =    ---- =  ------

12 - 2         10       2

Hope this helps!

Answer:1/2 Step-by-step explanation:

If x=6 and y=−4, evaluate the following expression:10−4xy​

Answers

Answer:

106

Step-by-step explanation:

Substitute x = 6, y = - 4 into the expression

10 - 4xy

= 10 - 4 × 6 × - 4

= 10 - 24 × - 4

= 10 - (- 96)

= 10 + 96

= 106

please help i don’t understand

Answers

Answer:

answer is HL

it cannot be used to prove this

hope it helps

what's 100,994 rounded to the nearest 100?

Answers

Answer: 101000

Step-by-step explanation: It would be rounded to 101000 because the nearest 100 would be a 1000.

Answer: 111,000 because when you round 994 you get a thousand because that’s the next hundred so you get 111,000

Step-by-step explanation:

please help i’ll mark!

Answers

Answer:

-6

Step-by-step explanation:

If f(a)=4a-5 what is f(3)-f(1.25)
a. -8
b. 7
c. 17
d. 32

Answers

c)17

Step-by-step explanation:

Please I need help

Question: What are the solutions to this graph?

Answers

Answer:

The solution to the graph are x = -2 and x = 2

Step-by-step explanation:

Here, we want to get the solution to the graph

As we can see, the graph is parabolic; which is a property of a quadratic polynomial

The solution refers to the value at which the graph plot crosses the x-axis

In other words, the solutions to the graph are represented by the point at which we have the graph crossing over the x-axis

We can see this happen at two points

These are the points x = -2 and x = 2

Help i don't know what to do I will give brainiest

Answers

Answer:

Her starting average was 66

it decreased by 7

her final average was 71

Step-by-step explanation:

i think

Answer:

a. 78

b. decreased by 7 points

c. 83 points

Step-by-step explanation:

What’s the answer????

Answers

Answer:  5(11m + 6)

Step-by-step explanation:

We find the Greatest common factors to factor out:

55m + 30

= 5(11m + 6)

Subtract 6.1 and 51.24

Answers

6.1 - 51.4 = -45.14

But if 51 went first

51.24 - 6.1 = 45.3

Cual es la mitad de 9.5

Answers

9.5 dividido entre 2 es=4.75

which graph is linear
​

Answers

Answer:

C

The third one

Emily is training for a 10K race. On day one, she runs for 20 minutes. On day two, she runs for 30 minutes. On day three, she runs for 40 minutes. If this pattern continues, how many minutes will she run on day 12?

Answers

It should be 130 as from day one to day two and to day three it goes up by 10 so 12*10+10

A recipe uses 5 cups of milk to make 30 servings. If the same amount of milk is used for each serving, how many servings can be made from one quart?

Answers

Answer:

Three gallons will be enough to make 128 servings.

Step-by-step explanation:

In Three gallons there are 64 cups. if 5 cups makes 10 servings, that is 1/2 cup per serving. So 64 cups will make 128 servings.

Serge was curious if a sample third quartile was an unbiased estimator of a population third quartile. He started with a large normally distributed population of test scores whose third quartile was Q3=80 points. He then took a random sample of 6 tests and calculated the third quartile of the sample. He replaced those tests and repeated this process for a total of 40 trials. His results are summarized in the dot plot below, where each dot represents the third quartile from a sample of 6 tests.

Answers

Answer:

Sample third quartile appears to be an unbiased estimator of the population third quartile.

Step-by-step explanation:

khan

A parking lot in the shape of a trapezoid has an area of 28 square meters the length of one base is 3 meters and the length of the other base is 5 meters what is the height of the parking lot?

Answers

Need more information

Identifying When to Use a Sample
ch survey is a sample not necessary?

Answers

The answer is d how many car accidents invoke air bag

here are the rest of my points (btw i barley logged in to brainly but now i am logging out of it) (sorry it only 13 points) :)

Answers

Answer:

thanks

Step-by-step explanation:

Answer:

thank you!

Step-by-step explanation:

(ﾉ◕ヮ◕)ﾉ*: ･ﾟ✧ ✧ﾟ･: *ヽ(◕ヮ◕ヽ)

5.
Write an equation of a line with the given slope and y-intercept.
m = (1)/(4), b = -(3)/(4)

A. y= 4x - (3)/(4)

B. y= (1)/(4)x - (3)/(4)

C. y= (1)/(4)x + (3)/(4)

D. y= -(3)/(4)x + (1)/(4)

Answers

Answer:

B. y= (1/4)x-3/4

The equation of a straight line it is found by using

Y= mx + c

Where m is the gradient

and c is the y intercept

Answer:

C. y= (1)/(4)x + (3)/(4)

Step-by-step explanation:

Equation of a line is y=mx+b  

where m is the slope and b is the y-intercept.

y= (1)x + (4)

so

the equation of this line would be,

y = x + 4

y=x+4

Could someone please help me with the math in the picture below it on parts of a line

Answers

ok so here is some help:

Point: any singular location on the line. (basically the dots with letters)

line segment: connects any two points on a given line. Is named using the two points. (LM and MN are two line segments)

rays: a line that is only infinite in one direction. it has a point on one end and the other has to have an arrow on its side. (an example is MN)

Name the line: a line can be named using any two points on a line.

draw a ↔ over line names, --> over rays, and a -- over line segments

I will mark you BRAINLIEST for the correct answer

Answers

Answer:

8:56 which simplified would be 1:7

Step-by-step explanation:

WILL GIVE BRAINLIEST!
Two cyclists start from the same point at the same time and move in opposite directions. One cyclist is traveling at 12 mph, and the other cyclist is traveling at 8 mph. After 30 min, how far apart are the two cyclists?
mi

Answers

An hour is 60 mins long. 30 mins is half of it. If we take 12 miles in an hour, divide it by 2, it will be 6 miles in 30 mins, and if we take 8 miles, divide it by 2, it would be 4 miles in 30 mins. Since the questions telling us how far apart are north cyclists, we’re adding 6 and 4 to get 10 miles. In conclusion, both cyclists are 10 miles apart. I might be wrong, but that’s the best I can do.

help me with this answer please

Answers

Answer:

(0,3)

Step-by-step explanation:

on the y-axis, the point is 3 points above 0 so its (0,3)

Answer:

(0,3)

Step-by-step explanation:

y - intercept is where the line intersects the y-axis and that is at the point (0,3)

Solve the problem by entering and solving an equation.

A rectangular picture frame has a perimeter of 58 inches. The height of the frame is 12 inches. What is the width of the frame

Answers

Answer:

15 inches

Step-by-step explanation:

Substitute the formula

Let 'x' be the other side

2 [ l + b ] = Perimeter

2 [ 12 + x ] = 58

    12 + x   = 58 divided by 2

           x    = 27 - 12

                 = 15

Therefore 15 inches is the other side.

Please help i got it wrong its not 130 degrees

Answers

The angle is 80 degrees
lol it’s 80. it’s almost a 90 degree angle but it’s not completely so it’s 80

If electricity comes from electrons, does morality come from morons?

Answers

Answer:

AHAHAHAHA

Step-by-step explanation:

nope LOL

Answer:

gftrtrtgfrtrftgtrgty

Step-by-step explanation:

fgrtfgtrfggtrfgtrfgtrfgtrfgytrfgtrfgtr

Please help and don’t spam for points it’s annoying

Answers

Answer:

What do you need help with?

Step-by-step explanation:

Other Questions
The Cold War, which was a period of mutual distrust and competition betweent the U.S. and the Soviet Union, took place until1991. What are reasons why the Cold War began between the U.S. and the Soviet Union? In what ways could the Cold Warbe prevented back in 1947? Which treaty assured that Great Britain would leave their western US forts in exchangeto the right to take supplies that were sailing to France? Rewrite 2x+5y=3 using function notation A survey of randomly selected visitors to a mall yielded the following data:Approved new design for the seating in the food courtNumber surveyedMale155254Female157301Based on this sample, what would be the correct decision and conclusion of a test to determine whether the proportion who approve the design plan for the seating area in the food court is higher for men than it is for women at the 5% level?a) Reject the null concluding that there is evidence the proportion is higher for men.b) Reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.c) Do not reject the null hypothesis concluding that there is evidence that the proportion is higher for men.d) Reject the null concluding that there is evidence the proportion is higher for women.e) Do not reject the null hypothesis concluding that there is no evidence that the proportion is higher for men. PLSS HELP!! WILL GIVE YOU BRAINLYEST!!The net below shows the dimensions of Michelle's living room. She is going to put wallpaper on the living room walls.What is the total surface area of the room? Which is a factor of 6? Need help on algebra hw question. Suppose that an individual has a body fat percentage of 14.5% and weighs 171 pounds. How many pounds of his weight is made up of fat? Round youranswer to the nearest tenth.pounds how to round the decimal 4.15 to the hundredths place? I need X can someone help with this proportion What was Israel like before WWI, when it was under the Ottoman Empire. two out of three vehicles in a parking lot are SUVS. there are 18 SUvs in the parking lot how many vehicles are in the parking lot? Show me STEP by STEP how to convert 5,807 Km to meters.Show me STEP by STEP how to convert 2,144 cups to gallons. URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (33pts) 7.3 Code Practice edhesive 1.4 cm5 cm3 cmA. What is the area of the figure above?B. What is the volume of the figure above? Find the value of x in the angle pair. work out the size of angle A What is the 2nd term of the linear sequence 2, 5, 8, 11, 14.... Write 1 1/3 and 1 1/2 as improper fractions and multiply the improper fractions. What is the product