Mathematics Middle School

What is the easiest way to solve y=3x-12, y=16-x using systems of equations.
1.Graphing
2.Substitution
3.Elimination
Also help me figure out how to tell in the future plz :)

Answers

Answer 1

Answer:

elimination

Step-by-step explanation:

You need to eliminate numbers from the equation until  it is solved.

Answer 2
Graphing is the answer for you

Related Questions

i need this answer asappppp

Answers

Ill answer it for you 150 cubic meters
It is 150 cube meters

Jerry started doing sit-ups every day. On the first day, he did 18 sit-ups. Every day after that he did 4 more sit-ups than he had done the previous day. Today Jerry did 26 sit-ups. Enter an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day.

The equation __ d + __= __can help find the number of days Jerry has been doing sit-ups.

Answers

Answer:

you have to divide then subtract in order to find the answer

Step-by-step explanation:

All numbered streets runs parallel to each other. Both 3rd and 4th Streets are intersected by King Ave. as
shown: ****All answers are from the point of view from being inside the car**** complete sentences

(a) Suppose a car is traveling west on 4th Street and turns onto King Avenue heading north. What is the measure of the angle created by the car's turning? Explain your answer.

(b) Suppose a car is traveling southwest on King Avenue and turns left onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.

(c) Suppose a car is traveling northeast on King Avenue and turns left onto 4th Street. What is the measure of the angle created by the car's turning? Explain your answer.

Pls work it out for me I'm VERY confused.

Answers

I will be using * as the degree symbol

Answer:

a) 105*

b) 105*

c) 105*

Step-by-step explanation:

a) the car is facing west or left. If you imagine it spinning completely around to face east, it would be turning 180*. However it does not go that last 75* shown on the map. So 180 - 75 = 105

b) The angle diagonal to the 105* angle is also 105*. And since 3rd and 4th street are parallel so is the angle you are trying to find

c) This is the same turn as the first one but opposite

The Jones family plans to borrow $22,000 for 15 years. If the interest rate is 4.25%, how much will the family pay in interest ?
A. $140,250
B. $6,025
C. $14,025
D. $9,350

Answers

C I think. 22,000x15 years. 330,000 x4.25%=14,025

Answer:

Pretty sure its D. but im not 100% sure

Step-by-step explanation:

please correct me if im wrong :D

Please answer this is worth 15 points! The equation should be in y=mx+b from.

Answers

you can’t really tell the problem, you need more explanation.

A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

The mean of the group that studied is about 16 points ___ (lower, higher)
than the mean of the group that did not study.

The MAD of the group that did not study is about ___ (twice / half)
as much as the MAD of the group that did study.

There is more variation in the scores of the group that ___ (study / not study)
.

Answers

Answer:

Blank 1: higher

Blank 2: half

Blank 3: not study

Step-by-step explanation:

I don't know 100% that the middle one is correct, but I know for sure the other two are.

Answer:

1- Higher

2- Twice

3- Did not study

Step-by-step explanation:

BRAINLIEST INCLUDED!!! No explanation needed!! Elena walked 12 miles. Then she walked 1/4 of the distance. How far did she walk altogether? Select ALL that apply. Must answer more than one!!
A) 12+ 1/4
B) 12 (1/4)
C) 12 + 1/4(12)
D) 12 (1+1/4)
E) 12(3/4)
F) 12(5/4)

Answers

Answer:

it's just c...................

C She walked 12 then then 1/4 but you can’t just add it you have to multiply so multiply it by the 12 which means adding another 12 to the equation


HELP PLEASE ITS DUE IN 10 MINUTES

Answers

Easy. A would be correct
A is the correct answe

Olivia went for a hike. The graph below shows the distance she had hiked at different lengths of time. Which equation represents the relationship between the length of time, x, in hours that Olivia hiked, and the distance, y, in miles she hiked?. Single choice.

Answers

where’s the graph at?
Post the graph so we can see.

17/15 - 1/3 what is the answer

Answers

The answer is 4/5 ! hope it helps

Pls help with the question in picture

Answers

Correct answer:

1/3

I hope this helps !! :)
1/3 hopefully i helped you:)

In the expression 14b what is the coefficient? *

Answers

Answer:

14

Step-by-step explanation:

Which relation is a function with range of {-1, 0, 1, 4}?

A. {(1, 5), (-1, -2), (0, 3), (4, -7)}

B. {(5, 1), (-2, 0), (5, 4), (0, -1)}

C. {(-8, 0), (3, 4), (0, -1), (-2, 1)}

D. {(-1, -2), (0, -1), (1, 0), (4, 3)}

Answers

Which relation is a function with rangle -The answer is C
I’m pretty sure it’s C

What is pi + pi
Please help me
And is pi 3.14

Answers

Answer:

6.28

Step-by-step explanation:

just add

3.14+3.14= 6.28 yehdhdhchuajdjf

Solve the equations below for x. Please show your math work step by step.
Part (a): x+(-3)=7 Part (b): 2x-2=-12





Solve the equation for m. Please show your math work step by step.
2(m + 6) = 24




Mikey solved the inequality problem below incorrectly. Explain her error and redo the problem showing the correct answer.
Original problem: -4x+8<32
Mikey’s math work: -4x+8-8<32-8
-4x÷-4<24÷-4
x<-6

Answers

for Mikey problem answer

HELP ME NOW URGENT Select the table that represents the linear function: (Graph them if necessary)
A: X- 0,1,2,3 Y- 11,7,5,4
B: X- 0,1,2,3 Y- 0,0,-1,-2
C: X- 0,1,2,3 Y- 6,12,18,24
D: X- 0,1,2,3 Y- 3,2,1,0

Answers

it would probably be C but you should check it.

Answer:

C

Step-by-step explanation:

Plz help ASAP! Show how you did it if possible.

Answers

Answer:

7m^3-11m^2+5m+17

Step-by-step explanation:

it'll be really hard to show work so just trust me on this one-

hope it helps <3

For m^3 : Because you are subtracting a negative from a negative, that means you are adding, therefore the first part should be 7m^3

For m^2 : because you are subtracting a positive from a negative, that means you are subtracting, so it would be -11m^2

For m : because you are subtracting a negative from zero, it would turn into a positive, making it just 5

For the constant : subtracting positive 8 from negative 9 makes it a positive from the double negative. Therefore you would add 8+9, giving you 17

FINAL ANSWER : B. (7m^3)-(11m^2)+5m+17

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Answer:

B I finished that test and got an 100

I need a set of coordinates to model a relation that is a linear function quick please.

Answers

Answer:

y=2x+1

Step-by-step explanation:

The linear function is a function that has a straight line graph.

Response:

A set of coordinate that model a linear function is presented as follows;

{(0, 5), (1, 8), (2, 11), (3, 14), (4, 17), (5, 20)}

Method by which the above set of coordinates is obtained

A linear function is a function that can be written in the form; y = m·x + c

Where;

m = The slope of the graph is a constant

c = The y-intercept of the graph is a constant

Therefore,

Therefore, a set of coordinates can be obtained by setting the values of m and c as follows;

When m = 3, and c = 5, we have;

y = 3·x + 5

Using the above equation, we get;

[tex]\begin{tabular}{|c|c|} \underline{x} & \underline{y = 3 \cdot x + 5}\\0&5\\1&8\\2&11 \\3&14\\4&17\\5&20\end{array}\right][/tex]

Using the above table of values, a set of coordinates that model a linear function is therefore;

{(0, 5), (1, 8), (2, 11), (3, 14), (4, 17), (5, 20)}

Learn more about linear function here:

https://brainly.com/question/5219452

Giving brainliest!!!!!!!!!!!!!!!!!

Answers

Answer:

c

Step-by-step explanation:

i don't really know how to explain it, but i'm 99.9999999% sure it's C. hope u get an A on ur assignment! xoxo

Answer:

C would be the answer. :)

Step-by-step explanation:

Which product will be positive?

Answers

Answer:

2 x (-5)

Step-by-step explanation:

The circle graph represents a family’s monthly budget. If the total monthly budget is $6,500.00, how much more does the family spend on housing than food?

Answers

Answer:

Use the percentages to help you.

Ask yourself, what is 25% of $6,500.00?

Turn your percent into a decimal which is 0.25

then multiply $6,500 by 0.25

you should get 1625.

Find the amount of money spent on the food and find the difference of the two.

C. $390.00

Explanation:

Housing: 6,500/.25= $1,625
Food: 6,500/.19= $1,235

Subtraction:
$1,625 - $1,235= $390

The family spends $390.00 more dollars in housing than food.

Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes.
If each machine makes popcorn for 10 minutes, will there be enough popcorn for eight 9-ounce bags? Explain.

Answers

Answer:

yes if each machine makes popcorn for 10 minutes, there be enough popcorn for eight 9-ounce bags

Step-by-step explanation:

yes because 12.74 x 3.3 = 42.075 and 18 x 2.5 = 45 and when you add those together you get 87. Also 8  9-ounce bags = 72 and that is less then what you have.

Answer:

Yes there will be enough popcorn for eight 9-ounce bags.

Step-by-step explanation:

" eight 9-ounce bags"

Basically

"72 ounces"

"12.75 ounces of popcorn in 3 minutes"

Basically

We need to find out how much popcorn we can make in "One Minute"

12.75÷3=4.25

Now we need to find out how much it can make in "Ten Minutes"

4.25×10=42.5

"18 ounces of popcorn in 4 minutes."

Basically:

We wanna find out how much it can make in "One Minute"

18÷4=4.5

"makes popcorn for 10 minutes"

Basically:

We need to find out how much popcorn it can make in "Ten Minutes"

4.5×10=45

Add (45) and (42.5)

45+42.5=87.5

So yes,there will be enough popcorn for eight 9-ounce bangs due to the fact A and B makes (87.5) ounces of popcorn and thats greater than (72) ounces.

Answer option C is correct.

Mr. Green washed
1
4
of his laundry. His son washed
2
5
of it. How much of the laundry still needs to be washed?

(Need the answer to be in fractions)

Answers

Answer:

What was the original number??

Step-by-step explanation:

The answer is 7/20 still needs to be washed. Hope this helped!! :)

Which of the following relations represent functions? Select all that apply.
please helpp

Answers

B1 and C2 cause that is how you find out the function of the pairs

A surfboard was originally priced at $75 but went on sale for 60% off. If Quincy bought the surfboard and paid 10% sales tax, how much did he pay in total?

Answers

Answer:

$49.5

Step-by-step explanation:

60% of 75$ = 45$

60/100 x 75/100   = 4500

4500/100 = 45

10% sales tax on 45$ = 49.50$

10/100 x 45/100 = 450

450/100 = 4.5

4.5 + 45 = $49.5

Mrs. Irons places the names of each of her four children in a hat at one time. She randomly draws a name, places it back in the hat, and draws again. The results are shown in the table below.



If the experiment was repeated 1,000 times then how many times could you expect to pull Ella's name?

Answers

Just do 1000 divided four 250

Answer:

250

Step-by-step explanation:

1/4 of 1,000 is 250.

i will mark brainliest

Hideki buys 2 sweaters for $18 each. He can use one of the following coupons:
● Coupon 1: Buy one, get one 40% off
● Coupon 2: 25% off entire purchase
Which should he use to get the greatest discount?

(if you answer this may you please show your work)

Answers

Answer:

754%

Step-by-step explanation:

Answer:

Step-by-step explanation:

he will get the 40% because 18-40% = $10.4 but if he gets 25% he will have to pay $13.5 40% is the best on

Tyler's brother works in a shoe store.
Tyler's brother earns $12 per hour.
The store offers him a raise, a 25% increase per hour.
After the raise, how much will Tyler's brother make per hour

Answers

i think hell make 15 dollars an hour

Answer:

He will now make $15 a hour.

Step-by-step explanation:

12 + 3 = 15

25% of 12 is 15.

Find the missing dimension.



height: 12 1/4 in.
area: 128 5/8 in

Answers

Would it be width? Sorry, I don’t understand the full question. Is this the whole question?

Answer:

Its base

Step-by-step explanation:

because um you just need to say height x width x base

then you know

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