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
Katena32 [7]
3 years ago
13

4.

Mathematics
1 answer:
valina [46]3 years ago
7 0

Answer:

$(10, 0)$

Step-by-step explanation:

Let's try all the options:

$\left \{ {{2x + y = 20} \atop {4x-2y = 40} \right. $

Considering $(10, 0)$:

$\left \{ {{2(10) + 0 = 20} \atop {4(10)-2(0) = 40} \right. $\\

$\left \{ {{20 + 0 = 20} \atop {40-0 = 40} \right. $

$\left \{ {{20= 20} \atop {40 = 40} \right. $

Considering $(0, 10)$:

$\left \{ {{2(0) + 10 = 20} \atop {4(0)-2(10) = 40} \right. $\\

$\left \{ {{0 + 10 = 20} \atop {0-20 = 40} \right. $

$\left \{ {{10= 20} \atop {-20 = 40} \right. $

$\left \{ {{10\neq  20} \atop {-20 \neq 40} \right. $

Considering $(4, 2)$:

$\left \{ {{2(4) + 2 = 20} \atop {4(4)-2(2) = 40} \right. $\\

$\left \{ {{8 + 2 = 20} \atop {8-4 = 40} \right. $

$\left \{ {{10= 20} \atop {4 = 40} \right. $

$\left \{ {{10\neq  20} \atop {4 \neq  40} \right. $

Considering $(10, -10)$:

$\left \{ {{2(10) -10 = 20} \atop {4(10)-2(-10) = 40} \right. $\\

$\left \{ {{20 -10 = 20} \atop {40+20 = 40} \right. $

$\left \{ {{10= 20} \atop {60 = 40} \right. $

$\left \{ {{10\neq  20} \atop {60 \neq  40} \right. $

You might be interested in
Trig help please, 2 questions, 10 pts
Scrat [10]
1. 2700 degrees. 450 rotations in on minute is 450(360) degrees per minute. If you divide this by 60 you get 2700. 
2. 180 degrees. 4.3 rotations per minute is 4.3 times 360 degrees per minute. Multiply that times 5, and divide the answer by 360 and you get 21.5, which means he is 180 degrees from his starting point. 
4 0
3 years ago
I'M OFFERING 20 POINTS AND BRAINLIEST ANSWER FOR HELP
Hoochie [10]
1$ is 100cents
45$ is 4500 cent
THE ORIGINAL price is $53
if 85% = $45
so 15%= ? cross multiply
45x15=85x$
675/85=x$
7.9 app8$ was discounted 
original price=45+8=$53
in cent it is 5300 cents



6 0
4 years ago
What is 27% of 76,200
mamaluj [8]

Answer:

20574 (happy to help)

:)

3 0
3 years ago
Read 2 more answers
Find the sum.
Strike441 [17]

You are gonna use the distributive property.

4(2.5g - 4) + 3(1.2g - 2)

So you are going to multiply 4 with everything inside the first set of parenthesis and your gonna multiply 3 with everything insides the second set of parenthesis.

4 x 2.5g - 4 x 4 + 3 x 1.2g - 3 x 2

10g - 16 + 3.6g - 6

You wanna combine like terms:

10 - 3.6g + 16 - 6

6.4g + 10

You answer is 6.4g + 10.

Hope this Helps!!

6 0
3 years ago
3.452 × 100 =-------------
Lilit [14]

Answer:

345.2

Step-by-step explanation:

1: Move 3.452 to the end of the equation

(3.452 × 100) -> (3.452 × 100 = 3.452)

2: Since 100 has 2 zeros, move the decimal point 2 places to the right.

(3.452 × 100 = 3.452) -> (345.2)

Hope this helps!

7 0
4 years ago
Read 2 more answers
Other questions:
  • The gross income of Maurice Vaughn is $785 per week. His deductions are $42.25, FICA tax; $90.33, income tax; 2% state tax; 1% c
    8·2 answers
  • For the graph x = -42 find the slope of a line that is perpendicular to it and the slope of a line parallel to it. Explain your
    15·1 answer
  • If the probability of snow tomorrow is 0.375, what is the probability that it will not snow?
    6·1 answer
  • Triangle ABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C? A. 9/41 B. 40/9 C. 40
    14·2 answers
  • 90 minus 50 divided by 5 times 6 plus 2
    11·2 answers
  • Use the zero product property to find the solutions to the equation x2 – 9 = 16.
    7·1 answer
  • Lin is delivering a package to a place located at 5,3 on the grid which house is getting the delivery
    8·1 answer
  • Can someone please explain functions and how find the y intercept when in this form
    12·1 answer
  • An owl begins at rest on a tree branch searching for prey. Once the owl locates the prey it flies from its perch and four second
    7·1 answer
  • Answer the two questions in the image above for brainliest!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!