Solve the system of equations by substitution.y=3x-10,3x+2y=16

Answers

Answer 1

Answer: Point Form: (4,2)

Equation Form: x=4,y=2

Step-by-step explanation:


Related Questions


Solve the equation m=nx-p for the variable n

Is it
A n=m+p/x
B n=m+x/p
C n=m-p/x
D n=x-p/m
Show work

Answers

9514 1404 393

Answer:

  A

Step-by-step explanation:

Add p to get the n term by itself, then divide by the coefficient of n.

  [tex]m=nx-p\\\\m+p=nx \quad\text{add $p$}\\\\\dfrac{m+p}{x}=n \quad\text{divide by $x$}\\\\ \boxed{n=\dfrac{m+p}{x}}[/tex]

Help!!
If the Harrison familys yearly income is 87,000, how much money will most likely spend on food.???
A. $3,480
B. $6,090
C. $21,750
D. $39,150​

Answers

Answer: The answer is C.

Step-by-step explanation: Simple form would be to divide the $87,000 into 4, 25% is 1/4 of the pie chart, so the problem would be $87,000 divided by 4 = $21,750 on food.

Answer:

Step-by-step explanation:

an auditorium holds 72 people for a school assembly. only staff and students will attend. if the number of students is 8 times the staff, then how many students are there?

Answers

Answer:

I would say there should be about 63 students

Answer:

There would be around 64 students

What are the coordinates of point A of the pre-image?
O (-1, 1)
O (-1,2)
O (-9,6)
O (-9, 18)

Answers

Answer: (-1,2)

Step-by-step explanation:

yuh

Answer:

(-1, 2)

Step-by-step explanation:

(4x + 7) ( -2x -5)????????????????

Answers

Answer:

-8x^2 -34x - 35

Step-by-step explanation:

(4x + 7) (-2x - 5)

-8x^2 - 20x - 14x - 35

-8x^2 -34x - 35


is that a right triangle??

Answers

Answer:

no

Step-by-step explanation:

it is an acute triangle

there is no angle equal to 90 °

What fraction of an hour is 10 minutes?

Give your answer in its simplest form.

Answers

Answer:

1/6

Step-by-step explanation:

Answer: 1/6

Step-by-step explanation: 60 minutes in a hour and one sixth of it is 10 minutes

NUMBER 2 AND 3. GIVING BRAINLIEST!!

Answers

Answer:

2. a. 11/4

    b. 8/6

3. a. 2 1/6

   b.  3 2/3

Step-by-step explanation:

So basically for number 2, you need to multiply the whole number and the denominator, then add the numerator.

For number 3, you need to divide the numbers. Like how much does 6 go to 13 or 11 go to 3. The remainder should be the numerator.

Answer:

Step-by-step explanation:

2)a)

[tex]2\frac{3}{4}=\frac{(2*4)+3}{4}=\frac{8+3}{4}=\frac{11}{4}\\\\1\frac{2}{6}=\frac{(1*6)+2}{6}=\frac{6+2}{6}=\frac{8}{6}\\[/tex]

3)

[tex]a) \frac{13}{6}=2\frac{1}{6}\\\\b) \frac{11}{3}=3\frac{2}{3}\\[/tex]

2.54 + 0.38y = 2(2.61 -0.48y)?
What is the answer show work plz

Answers

I can’t solve this problem but I can tell u how to do it bc I have to go to work really soon first u got to subtract what’s in ( ) first then subtract 0.38 from both sides then do the same for 2.45 and 2 and then u divide it out and u should get the answer

If someone were to procrastinate a summative project till Saturday which is due on Monday, 1/26/2021, 11:59, how much time would they have until the project is locked?

Answers

Answer:

approximately 4 days... but ummm  the 26 is a tuesday...

Step-by-step explanation:

help me for brainlist please

Answers

Answer:

39

Step-by-step explanation:

90+52= 142

180-142= 38

Answer:

38

Step-by-step explanation:

all the angles that add up to 180. so you have a 90 degree angle and a 52 degree angle. if you add 90 + 52 you get 142. if you subtract 142 from 180 you end up with 38. so angle R is 38 degrees

Abdul's average speed is 20 mph in heavy traffic, and his average speed is 50 mph in light traffic. If he was in heavy traffic for 1 hour and light traffic for 3 hours, how far did Abdul travel?

Answers

Answer:

20x1+50x3 = 170 MPH

Step-by-step explanation:

Therefore, he traveled 170 mph

Answer:

Be careful as StudyIsland/Edmentum will change up a few numbers on you.

In my case: 3 was changed for 2.

__________________

Its 20 mph x 1 hr = 20

Then 50 mph x 2hr = 100

Add both and answer is: 120

Just took test.

Find the slope of the line | (3) | A) B) C) را با اب D)​

Answers

Hi!


Could you provide a picture of the graph please??


Otherwise I have a hard time answering :/


But I’m really good a graphs! Just provide a picture and I will definitely help!


Many lucks coming your way!

the sum of a number and 2 is no more than 6 or no less than 10

i need to define the variable , write a compound inequality and solve.

Answers

Answer:

a. x + 2 ≤ 6 or x + 2 ≥ 10 b. x  ≤ 4 or x  ≥ 8

Step-by-step explanation:

a. Write a compound inequality

Let x be the number.

Since x + 2 is no more than 6 then x + 2 ≤ 6 and x + 2 is no less than 10 then x + 2 ≥ 10

So, the compound inequality is x + 2 ≤ 6 or x + 2 ≥ 10

b. Solve the inequality

Solving each inequality, we have,

x + 2 ≤ 6

x  ≤ 6 - 2

x  ≤ 4

x + 2 ≥ 10

x  ≥ 10 - 2

x  ≥ 8

So,  x  ≤ 4 or x  ≥ 8

16 + 2q = 6 what’s this?

Answers

Answer:

6 - 16 = -10

-10/2 = -5

q = -5

PLEASE HELP!!! I will give BRAINLIEST!!!

Answers

Answer:

first one yes s no third no fourth yes fifth no

6th grade math !!!!!!!!!!!!!!!

Answers

Answer:

x=3

Step-by-step explanation:

Well if 4x>10, then x needs to be more than 2.5, (because 2.5*4=10) So the only answer left is x=3

Answer:

it's 3

Step-by-step explanation:

as 4x3 =12 and 12 us greater than 10

Need help plzz I need it

Answers

Answer:

7

Step-by-step explanation:

The question asks for f(3).  f(3) is the y value.  "3" is the x value.  In other words the question asks, "What is the value of y when x is 3?"

When x is 3, y=7.  

X2 + 12x = -27
this is for a text and im a bit confused

Answers

Answer:(-3,-9)

Step-by-step explanation:

Today, since it was just days before a holiday, the place was a zoo of visitors. What does the metaphor in the sentence above tell about the park?

A It is crowded with people.
B It is not a place for children.
C It is a place people go to see animals.
D It is not challenging enough for adults.

Answers

The answer is a hope this helps

Answer:

A. It is crowded with people.

Step-by-step explanation:

2. A contractor's crew can frame 3 houses in a week. Which is true of the relationship between x and y?​

Answers

Linear and proportional as at week zero they started with zero houses. That means this starts at point (0,0)

Food bill: $36 Tip: 20% Sales tax (on food only) 6%

Answers

Answer: To figure out the tip, you need to find 20% of $52.60.

0.2×52.6=10.52

Step-by-step explanation:

Answer:

After eating at your favorite restaurant, you know that the bill before tax is $52.60 and that the sales tax rate is 8%. You decide to leave a 20% tip for the waiter based on the pre-tax amount. How much should you leave for the waiter? How much will the total bill be, including tax and tip? Show work to support your answers.

Solutions

Solution: An exact answer

To figure out the tip, you need to find 20% of $52.60.

0.2×52.6=10.52

You should leave $10.52 for the waiter if you want to leave him exactly 20%.

To figure the tax, you need to find 8% of $52.60.

0.08×52.6=4.208

Next, add them up:

52.6+10.52+4.208=67.328

The total bill, including tax and tip, will be $67.33.

Solution: Estimating an answer

If you are not concerned whether you give the waiter exactly 20%, you can simply estimate the total bill. Tax and tip together are a little less than 30% and the bill is a little more than $50. Since 30% of 50 is 15, the tax and tip together are approximately $15. (Note that the exact calculation is $14.73.)

We can also estimate the total bill as $52 + $15 = $67, which is very close to the exact calculation of $67.33. This kind of estimating is a good way to check the answer to an exact calculation, and more like the way you would probably compute tax and a tip in a real restaurant.

Solution: Exact tax, approximate tip

In a real-world context, restaurant patrons generally estimate the tip, but pay the exact tax based on the calculation of their bill. Therefore, a third solution possibility is for students to estimate the tip portion of the calculations and to find the exact tax when calculating the total bill.

If you wish to estimate the tip, you can round $52.60 to $50. Twenty percent of $50 is $10. So, you would leave a $10 tip.

To figure tax, you need to find 8% of $52.60:

0.08×52.6=4.208.

Next, add the estimated tip, the calculated tax, and the pre-tax bill:

52.60+10+4.208=66.808.

The total bill will be $66.81.

Step-by-step explanation:

Wich is the correct simplified form of the expression
A
B
C
D

Answers

I think it’s C I took this test before

Which of the following is true regarding the sequence graphed below?


The sequence is arithmetic because the terms have a common difference.
The sequence is arithmetic because the terms do not have a common difference.
The sequence is not arithmetic because the terms have a common difference.
The sequence is not arithmetic because the terms do not have a common difference.

Answers

Answer:

where is the graph

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

Trust me. I just had this question.

Mrs.Doggendorf drove 45 miles and used 3 3/4 gallons of gas. Her sister Kelly, drove 85 miles and used 8 2/3 gallons of gas. Which driver used fewer gallons of gas per mile

Answers

Answer:

Mrs.Doggendorf has fewer gallons per mile

Step-by-step explanation:

Mrs.Doggendorf drove 45 miles and used 3 3/4 gallons of gas

The miles per gallon is

convert  3 3/4 gallons to simple fraction= 15/4 gallons

miles per gallon= 45/15/4

miles per gallon= 45*4/15

miles per gallon= 12 miles per gallon

gallons per mile= 1/12

Kelly, drove 85 miles and used 8 2/3 gallons of gas

convert 8 2/3 gallons to simple fraction= 26/3 gallons

miles per gallon= 85/26/3

miles per gallon= 85*3/26

miles per gallon=9.80 miles per gallon

gallons per mile= 1/9.80

Hence Mrs.Doggendorf has fewer gallons per mile

F(x) = 6 x+50
Domain and range

Answers

Answer:

Domain: all real numbers

Range:  all real numbers

Step-by-step explanation:

It may help to graph the equation and analyze it.

I NEED HELP ASAP :(
Daniel can spend no more than $40 at the fair. If admission into the fair is $10 and the rides cost $1.50 each, which inequality represents the greatest number of rides Daniel can go on?

a) 10x + 1.50 ≥ 40

b) 1.50x + 10 ≤ 40

c) 1.50x + 10 <40

d) 10x + 1.50 < 40

Answers

Answer:

hey! the answer should be B. 1.50x+10≤40

Step-by-step explanation:

Three lizards eat 63 grams of food each day. How many grams of food would you expect 5 lizards to eat

Answers

Answer: 105 grams

Step-by-step equation: they each eat 21 grams a day

help pls, this is due very quickly

Answers

Answer:

The slope is 4 and the y intercept is (0, 2)

All things algebra unit 7 homework 6 questions 7 and 8​

Answers

3/3 the answer but i have to ask a question so please give this a good rating or something
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