05-10-2016
Mathematics

contestada

One number is two times another. The sum of the number is 90 what are the two numbers

Respuesta :

apologiabiology apologiabiology

05-10-2016

one number is 2 times another
x=2y

sum is 90
x+y=90

easy
x=2y
sub 2y for x
2y+y=90
3y=90
divide both sides by 3
y=30

sub back
x=2y
x=2(30)
x=60

the numbers are 60 and 30

Answer Link

Otras preguntas

if f(x)=4x -11. whats is the value of f(5)9

What is bigger 400 pints or 100 gallons

If a space shuttle is traveling at 17460 miles per hour ,how fast is ot moving per minute

Please help with a and b

800 is 10 times more

Overall, what is the least useful mineral identification property listed here? A. Streak B. Hardness C. Magnetism D. Specific gravity

Pita has 12 coins in her bag there are three 1 pound coins and nine 50p coins she takes 3 coins out of the bag at random, work out the probability she takes out

Seasons are the result of what

At 8:00 a.m. the temperature outside in Juneau, Alaska was -16.5 . By noon the temperature had increased by 15.25 . What is the temperature at noon?

Find the probability a random voltage is less than 124.2 volts A. 0.40 B. 0.60 C. 0.10 D. 0.80