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
Ivanshal [37]
3 years ago
11

Linear system x-y=9X+2y=27 ​

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0
X=15 and y=6

15-6=9
15+2(6)=27
2(6)=12
You might be interested in
A real estate purveyor purchases a 60,000square foot warehouse and decides to turn it into a storage facility. The warehouse's w
Bess [88]

Answer:

Therefore the width of the warehouse is 245 feet.

Step-by-step explanation:

Rounding to the nearest foot:

  • If the digit of tenths place is between 1-4, then the unit digit remains same.
  • If the digit of tenths place is between 5-9, then the unit digit increases by 1.

Given that,

A real estate purchases a 60,000 square foot warehouse.

The width of  warehouse is exactly of its length.

Since the unit of  60,000 is square foot. So, it is area of the warehouse.

The area of a rectangular plot is = Length× width.

Since the width of  warehouse is exactly of its length.

Then the length of the ware house = the width of the warehouse

∴ Length× width =60,000

⇒width× width =60,000

⇒ width² =60,000

\Rightarrow width=\sqrt{60,000}

\Rightarrow width\approx 244.94

⇒ width =245 feet.( nearest to feet)

Therefore the width of the warehouse is 245 feet.

3 0
3 years ago
Read 2 more answers
Bryan’s monthly electric bill is determined by adding a flat administration fee to the product of the number of kilowatt hours o
rewona [7]

We will form the equations for this problem:

(1) 1100*y + z = 113

(2) 1500*y + z = 153

z = ? Monthly administration fee is notated with z, and that is the this problem's question.

Number of kilowatt hours of electricity used are numbers 1100 and 1500 respectively.

Cost per kilowatt hour is notated with y, but its value is not asked in this math problem, but we can calculate it anyway.

The problem becomes two equations with two unknowns, it is a system, and can be solved with method of replacement:

(1) 1100*y + z = 113

(2) 1500*y + z = 153

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

(1) z = 113 - 1100*y [insert value of z (right side) into (2) equation instead of z]:

(2) 1500*y + (113 - 1100*y) = 153

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

(1) z = 113 - 1100*y

(2) 1500*y + 113 - 1100*y = 153

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

(1) z = 113 - 1100*y

(2) 400*y + 113 = 153

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

(1) z = 113 - 1100*y

(2) 400*y = 153 - 113

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

(1) z = 113 - 1100*y

(2) 400*y = 40

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

(1) z = 113 - 1100*y

(2) y = 40/400

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

(1) z = 113 - 1100*y

(2) y = 1/10

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

if we insert the obtained value of y into (1) equation, we get the value of z:

(1) z = 113 - 1100*(1/10)

(1) z = 113 - 110

(1) z = 3 dollars is the monthly fee.

credit: freesparrow

4 0
3 years ago
Read 2 more answers
he width of a rectangle is 20 units. Can the perimeter P of the rectangle be 64 units when its length x is 11 units
Elodia [21]

No because from what I understand,

2w + 2l = p            so

2(20) + 2(11) = 64    if that was true, both sides would be equal.

40+22+=64

62=64            and they are not.


7 0
4 years ago
The equation y = mx + b is the slope-intercept form of a linear equation. Solve y = mx+ b for m.
Assoli18 [71]

y = mx + b \\  \\ y - b = mx \\  \\  \frac{y - b}{x}  = m
therfore it is option A
7 0
3 years ago
On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee.
ziro4ka [17]
140 (number of customers) * .65 (% of customers who ordered a large coffee) = 91 customers who ordered a large coffee
4 0
3 years ago
Read 2 more answers
Other questions:
  • Seth earns $560 per week. He has 1/5 of his income withheld for federal taxes, 1/15 of his income withheld for state taxes, and
    6·2 answers
  • Which interval notation represent the set of all real numbers greater than 2 and less than or equal to 20
    12·1 answer
  • How many quarts are in pints?
    11·2 answers
  • Which values, when placed in the box, would result in a system of equations with no solution? Select the four correct answers. y
    14·2 answers
  • The line y= 3/4x-7 passes through which of the following points
    14·2 answers
  • Please help !!!!!!!!!!!
    10·1 answer
  • Someone PLS help me with this math problem and please explain to show how you got the answer tysm to anyone who can help me!!!
    6·1 answer
  • Respond this question PLZ
    6·1 answer
  • Aaron took his car to the shop for an oil change. He dropped the car off at 2:34. Aaron came back to pick up his car 1 hour and
    6·1 answer
  • Find the sum. sum_k=3*6 k-5/k-1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!