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
PSYCHO15rus [73]
3 years ago
15

X + y = k

Mathematics
2 answers:
liraira [26]3 years ago
7 0
Hello,
Adding the 2 equations,
x+y+x-y=k+k ==>2x=2k==>x=k
if x=k, y=k-k=0
solution is (k,0)

oksano4ka [1.4K]3 years ago
6 0

Answer:

(k,0)

Step-by-step explanation:

x+y=k

x-y=k

To solve for x  and y we add both equations

x+y=k

x-y=k

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

2x=2k

Divide both sides by 2

x=k

Now plug in k for x and find out y

x+y=k

k+y=k

Subtract k on both sides

y=0

Ordered pair is (x,y) that is (k,0)

You might be interested in
A fair, twenty-faced die has $19$ of its faces numbered from $1$ through $19$ and has one blank face. another fair, twenty-faced
lawyer [7]
Represent 24 as a sum of two numbers, first number from first die and second number from second die.
24=19+5=18+6=17+7=16+8=14+10=13+11=12+12=11+13=10+14=9+15=8+16=7+17=6+18=5+19=4+20 (the sums 15+9 and 20+4 are absent, because there aren't numbers: 20 on the first die and number 9 on the second die). Totally, you receive 15 different representations of 24.
<span>The probability that the sum of the two numbers facing up will be 24 is
</span><span>
</span><span>P= \frac{15}{20\cdot 20} = \frac{3}{80} (here 20\cdot 20 means that you have 20 possibilities to roll first number or blank face on the first die and 20 possibilities to roll number or blank face on the second die).
</span>


8 0
3 years ago
Container A is cylinder with a radius of 10 units and a height of 10 units. A right cone has been carved from its base and has a
sergij07 [2.7K]

Answer:

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

From the information given,

Height = 10 units

Radius = 10 units

Volume = π × 10² × 10

The formula for determining the volume of a cone is expressed as

Volume = 1/3πr²h

Height = 10 units

Base = 10 units

Volume = 1/3 × π × 10² × 10

Since the cone has been carved from the cylinder, the statement that derives the formula to find the volume of container B is

π × 10² × 10 - 1/3 × π × 10² × 10

7 0
3 years ago
Last year, Deshaun had $20,000 to invest. He invested some of it in an account that paid 9% simple interest per year, and he inv
dezoksy [38]

Answer:

the amount Deshaun invested in an account that paid 9% interest = $9,000

the amount Deshaun invested in an account that paid 5% interest = $11,000

Step-by-step explanation:

Let x = the amount Deshaun invested in an account that paid 9% interest

Let y = the amount Deshaun invested in an account that paid 5% interest.

Thus;

x + y = 20,000 - - - - (eq 1)

Now, After one year, he received a total of $1440 in interest. Thus;

0.09x + 0.05y = 1440

Multiply each term by 100 to give;

9x + 5y = 144000 ---- (eq 2)

Making x the subject in equation 1,we have;

x = 20,000 - y

Putting 20,000 - y for x in eq 2,we have;

9(20,000 - y) + 5y = 1440

180000 - 9y + 5y = 144000

180000 - 4y = 144000

180000 - 144000 = 4y

36000 = 4y

Divide both sides by 4 to give;

y = 36000/4

y = $9,000

x = 20,000 - 9000

x = $11,000

7 0
3 years ago
1) 26 = 8 + v<br> I need help
Alika [10]

Answer:

18

Step-by-step explanation:

v is 18 because 18+8 is 26 ‍♀️

8 0
3 years ago
Read 2 more answers
Frankie and Gus swam for 10 minutes. When the time was up, Frankie had completed 10 7/10 tags and Gus had completed 10 4/5 laps.
telo118 [61]

Answer:

Step-by-step explanation:

10 4/5 = 10.8

10 7/10 = 10.7

Frankie did not swim the longest distance.

Gus did.

10.8>10.7

7 0
3 years ago
Other questions:
  • A boat is anchored 2.2 km due south of a lighthouse. Along the shore, the town of Beachton is 16.8 km due east of the lighthouse
    9·1 answer
  • Leslie weighs her marbles in a jar, and the scale reads 474 grams. The empty jar weighs 439 grams. Each marble weighs 5 grams. H
    13·1 answer
  • A train traveling at a constant speed takes a passenger from Deer Lake to Liberty, stopping first at Summerville and next at Cyp
    13·1 answer
  • The point P has coordinates (–4, 1). In which quadrant does point P lie?
    7·1 answer
  • Please help I can’t understand how to solve this problem
    11·1 answer
  • What is the sum of 1,015 and 119<br> a. 896<br> b. 1,134<br> c. 1,224<br> d. 1,314
    6·2 answers
  • ❗️ASKED ONCE AND NO ONE ANSWERED, WILL MARK BRAINLIEST,,,,,,,,,,❗️. Five men and eight women work in a firm’s PR office. Their e
    10·2 answers
  • 1
    14·1 answer
  • Solve this problem on paper using all four steps. Enter each answer separated by a comma, in numerical order.
    13·1 answer
  • What is the percent decrease from 61 to 11?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!