craz8ch3arCheyc craz8ch3arCheyc

15-03-2017
Mathematics

contestada

The sum of two numbers is 10. twice the first number is 4 more than twice the second. what are the two numbers?

Respuesta :

rarrininger rarrininger

15-03-2017

x+ y = 10
2x = 2y+4

2x/2 = 2/2y+4/2
x = y + 2

x+y = 10
y+2+y=10
2y + 2 = 10
2y +2-2 =10-2
2y = 8
2y/2 =8/2
y = 4

x + y =10
x + 4 =10
x +4-4 =10-4
x = 6

Check
2x = 2y +4
2(6) = 2(4) +4
12 = 8+4
12= 12

Answer Link

Otras preguntas

Each time zone is _______ degrees wide. A: 90 B: 15 C: 5 D: 45

A 60.0- kg dancer leaps 0.32 m high. With what momentum does he reach the ground

Troy lives in California. He bought a pair of shoes made in China. Which statement describes the shoes? a The shoes are exported to China. b The shoes are imp

Which statements about Northwest Coast totem poles, masks, and coppers are true? Choose all answers that are correct. A. Coppers were signs of wealth. B. Anim

2. A bowling alley charges $3.00 to rent shoes and $1.50 per game bowled.

Write and balance the equation for the complete combustion of acetylene, C2H2. You do not need to include any phase symbols or energy changes.

Which theory suggested that the earth was once a single “supercontinent” that gradually broke up into the continents that we know today? continental drift theo

How does television news gain credibility and likability?

How are the gases produced in plants recycled in nature

How many meters are equivalent to 375 centimeters