sulrawbat50 sulrawbat50
  • 26-04-2020
  • Mathematics
contestada

4x+2y=20 and 3x-y=10

Which coordinate solves both equations.

Respuesta :

DeanR
DeanR DeanR
  • 26-04-2020

4x + 2y = 20

3x - y = 10

Multiplying second equation by 2.

6x - 2y = 20

Adding to the first,

10x = 40

x = 4

y = 3x - 10 = 3(4) - 10 = 2

Answer: (4, 2)

Check:

4(4) + 2(2) = 16+4 = 20, good

3(4) - 2 = 12 - 2 = 10, good

Answer Link

Otras preguntas

How many moles of ca(oh)2 are in 25ml of 1.5 M solution?
find all real number x such that 6x-21≥3 or 14x+11≤-7
Why did the US civil rights movement gain new momentum after World War II? * a.President Truman desegregated the armed forces. * b.Rosa Parks rallied blacks in
What was included in a mummy's sarcophagus? Why?
What is the fraction for 2.3125? Improper fraction form
which of the following is a pure substance?a. sodab.gun powderc. sugar waterd. steam
draw and name all the isomers of the alkene C4H8
What was included in a mummy's sarcophagus? Why?
Kurt cut pizzasinto wedges measuring 40 degrees. I feach person eats one piece of pizza how many people could he feed with two whole pizzas
What causes the movement of air masses in a front