joelnebu joelnebu

18-12-2019
Mathematics

contestada

johns age is 4 times marys age now after20 years johns age is twice marys age what is the age of john and mary now answer with proper steps

Respuesta :

Stefanisaska Stefanisaska

24-12-2019

Answer: John 40

Mary 10

Step-by-step explanation:

J=4M--now

4M+20=2M----after 20 years

2M=20

M=10

J=40

Answer Link

Otras preguntas

Help me with english please

does anyone know the answer to this

For which expression is the sum of the constants greater than the sum of the coefficients? 7+3x^2+7x+3 7+4x^2+4x+1 8+4x^2+8x+2 8+3x^2+7x+4

If the width is doubled, the length is tripled, and the height is quadrupled, then which of the following statements about its volume will be true?

please help on this one?

x+y=c x−y=a solve for x and y

Take a look at "Hot, Hot, Hot." The article states: In this case, the dome of high pressure also pushed the jet stream and its drier, cooler air, farther north

how do u say hi in malasian

how do u say hi in malasian

What set of coefficients, respectively, balance this equation? H2O2 → H2O + O2 A) 1 → 1,2 B) 2 → 2,1 C) 2 → 2,2 D) 4 → 4,1