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
Kitty [74]
3 years ago
7

OER type of question.

Mathematics
1 answer:
Vlad1618 [11]3 years ago
5 0

Answer:

x=-3, y=-19

Step-by-step explanation:

we can solve by substitution.

y = 2x-1 we can derive from the second equation.

plugging it into the first equation, 2x -3(2x-1) = 15.

simplying, 2x-6x+3 = 15 --> -4x+3 = 15, -4x = 12, x = -3.

now we know x, so we can solve for y by plugging it into one of the equations. --> -3*-6+y = -1

simplify, 18+y = -1 --> y = -19.

You might be interested in
Help plzzz..............
Gennadij [26K]
A
area = 97*79=7663 ft^2
perimeter = 2(97)+2(79) = 194+158 = 352 ft

b perimeter

c area
8 0
3 years ago
Michael took in 91 mile bike trip. he left home at 7 AM. If he stopped for a total of two hours for rest and food and averaged 1
Korvikt [17]
Distance = rate * time
t = d / r

t = 91 / 14 = 6.5 hrs

plus 2 hour rest stop

8.5 hrs

start at 7 AM
end at 3:30 PM
5 0
3 years ago
Find area and circumference of the circle (12.) pls NO links
xxTIMURxx [149]

Answer:

The area is 452.39

The Circumference is 75.36

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The radius of a circle is 6 inches. What is the circle's circumference?<br> Use 3.14 for ​.
Vikentia [17]

Answer:

37.68 inches

Step-by-step explanation:

The equation for the circumference of the circle is:

C=2\pi r

We can substitute 6 in for "r" and 3.14 for "π":

C=2(3.14)(6\ in)\\C=12\ in(3.14)\\C=37.68\ in^

4 0
2 years ago
Given that f(x) = x^2 - 4x +1, find the value of m if f(m) = -3
iragen [17]

a. Answer:  m = 2

<u>Step-by-step explanation:</u>

f(x) = x² - 4x + 1

f(m) = m² - 4m + 1 = -3

         m² - 4m + 4 = 0

         (m - 2)(m - 2) = 0

               m = 2

***************************************************

b. Answer:  k = 2 and k = 5

<u>Step-by-step explanation:</u>

f(x) = x² - 7x + 14

f(k) = k² - 7k + 14 = 4

        k² - 7k + 10 = 0

        (k - 2)(k - 5) = 0

        k = 2   k = 5

3 0
3 years ago
Other questions:
  • Thirteen poker chips are numbered consecutively 1 through 10, with three of them labeled with a 5 and placed in a jar. A chip is
    13·2 answers
  • Subtract 5 from 1/3 of 23
    13·2 answers
  • What’s is the answer to this question ?
    15·1 answer
  • Wouldn't (D) be the right answer?? I divided 23% by 5,260, but I'm not 100% sure it's correct.
    6·1 answer
  • I need help with solving this derivative please (check for picture)
    13·1 answer
  • Which of the following equations of a line is NOT written in standard form?
    13·1 answer
  • Does anyone here know a guy named Connor this account on brainly starts with an r or w
    13·1 answer
  • A circle has area 2251 m2. What is its diameter?
    11·1 answer
  • The amount of money you earn varies directly to the number of pizzas you sell. If you earn $44 for selling 8 pizzas, How many pi
    8·1 answer
  • Simplify the following expression 4(x−8)−7x + 3 (in a test)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!