tylerseltze tylerseltze
  • 01-06-2017
  • Mathematics
contestada

Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. How old is Daniel now

Respuesta :

enticinghook4
enticinghook4 enticinghook4
  • 01-06-2017
k = Kevin
d = Daniel

k = 3 + d;
k - 2 = 4( d - 2 );
We have 3 + d -  2 = 4d - 8;
Then, d + 1 = 4d - 8;
9 = 3d;
d = 3.
Finally, k = 6 years.
Answer Link

Otras preguntas

what division problem equals 24
Which World War II event occurred first? The United States dropped two atomic bombs on Japan. President Harry Truman was sworn in to office.
"All integers are rational numbers" True or False
What is the mean of the set of numbers? {–11, 22, –2, –3} a. –6.5 b. –1.5 c. 1.5 d. 6.5
Who was extremely beautiful, but vain and cruel, and fell in love with his own reflection? a. Hermes b. Zeus c. Narcisus d. Echo
what led to the creation of complex societies
Which of the following would a biography not contain? facts and dates story elements imaginative details a theme
What produces the largest amount of federal revenue in the United States? A. individual income tax B. corporation income tax C. estate taxes D. excise taxes
A teacher had 24 red pens. If the ratio of red pens to blue pens she owned was 8:7, how many pens did she have total
Ideally, how does a republic work?