1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kozerog [31]
3 years ago
7

Y=3x-2 Y=2x-5 Find X and Y using substitution

Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0

y = 3x -2~~~.....(i)\\\\y = 2x-5~~~.....(ii)\\\\\text{Substitute equation (i) in equation (ii):}\\\\3x-2 = 2x -5\\\\\implies 3x -2x = -5+2\\\\\implies x = -3\\\\\text{Substitute}~ x =-3,~ \text{in equation (i):}\\\\y = 3(-3) -2 = -9 -2 = -11\\\\\text{Hence,}~ (x,y) = (-3,-11)

You might be interested in
Please help wit all questions! leave work below! if you do this , it will give you 40 points!!
Marta_Voda [28]

Answer:

13. ft per minute is 150. ft per hour is 9,000.

work:

  • 300÷ 2 = 150
  • 150 times 60 min.

14. x ÷ y = feet per minute.

it is this because the time divided by the depth will equal the time that it took.

15. it would be more reasonable to use feet by minute, because of the accuracy of the answers. with measuring it using feet per hour, your answers will be less precise.

16. the distance will double because the proportional relationship says that the distance is 3 km away if thunder is 9 secs apart from lightning.

will answer next question later

7 0
4 years ago
Noah took pictures of different lizards for a science project. He wanted 20 pictures altogether, but he only had 11 pictures so
NNADVOKAT [17]

Answer:

9 pictures

Step-by-step explanation:

if Noah needed  20 pictures in all ,but only had 11 he would subtract 11 from 20 leaving Noah with 9 pictures.

6 0
3 years ago
45x^4 + 72x^3 is factored form
Rudik [331]

Answer: 9 x 3 ( 5 x + 8 )

Step-by-step explanation:

Factor  9 x 3  out of  45 x 4 + 72x 3 .

4 0
3 years ago
Mt. McKinley, which is the highest elevation in North America, is 20,320 feet above sea level. Death Valley, which is the lowest
Llana [10]

Answer:

<u>20,602 feet</u> is the difference in height between the top of Mt. McKinley and the bottom of the Death Valley.

Step-by-step explanation:

Given:

Mt. McKinley, which is the highest elevation in North America, is 20,320 feet above sea level.

Death Valley, which is the lowest elevation in North America, is 282 feet below sea level.

Now, to find the difference in height between the top of Mt. McKinley and the bottom of the death valley.

<em>Height of Mt. McKinley above sea level = 20,320 feet.</em>

<em>Height of Death Valley below sea level = 282 feet.</em>

Now, to get the difference in height between the top of Mt. McKinley and the bottom of the Death Valley by adding both the heights:

20320+282

=20602\ feet.

Therefore, 20,602 feet is the difference in height between the top of Mt. McKinley and the bottom of the Death Valley.

5 0
3 years ago
Here are the answer choices <br> 180 <br> 38<br> 152<br> 150<br> 44
Temka [501]

Answer:

150

Step-by-step explanation: multiply 10 and 12 and get your rectangle area then multiply .5( 10 and 6) then add them together and get 150

8 0
3 years ago
Read 2 more answers
Other questions:
  • Jody paid $48.23 for a jacket. The price included a 6% sales tax. What was the original price of the jacket.
    6·1 answer
  • The statement "Angle 1 is congruent to angle 3" is justified by the ________. ?
    7·1 answer
  • In an isolated environment, a disease spreads at a rate proportional to the product of the infected and non-infected populations
    14·1 answer
  • An element with mass 570 grams decays by 18% per minute. How much of the element is remaining after 13 minutes,to the nearest 10
    15·1 answer
  • What is the seventh term of (x + 4)8?
    10·1 answer
  • Solve for the equation 4a-8=28
    5·1 answer
  • 3^−1⋅(4⋅6)⋅2^−3 Enter your answer in the box.
    13·1 answer
  • Find the amount necessary to fund the given with drawls. Quarterly withdrawals of $850 for 9 years with an interest rate of 4.4%
    14·1 answer
  • 45% of 80 equals what percent of 60
    8·2 answers
  • Lydia's school is holding a candy fundraiser. They are selling lollipops for $0.50 and candy bars for $1.50 Lydia buys 6 lollipo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!