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

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

Stem-and-Leaf Plots question: How many swimmers were younger then 30 Stem -- Leaf 0 1-- 1 2-- 3,9 3 --

Prove that 2n + 1 ≤ 2n for n ≥ 3

How did the Turks come to topple the Byzantine empire?

How long does interphase last?

Susan invests twice as much money at 7.5% as she does at 6%. If her total interest after a year is $840 how much does she have invested at each rate?

Please I really need help!equivalent fraction of 1/50 with a denominator of 100 and convert these fractions to decimals. Also these ones: 1/20 1/25 3/10 7/10 2/

If a fair quarter is flipped 3 times . What is the probability of getting exactly three heads? round to the neast thoudsands.

write the rate 1/7 inch ----------------- as a unit rate 1/14 minute

How do you calculate the initial speed given time and displacement? The question is: The longest kick in CFL history was 83.2m. If the ball remained in the air

What chemical compound is C2HsOH?