3 years ago

las edades de maría y susana suman 56 años si la edad de maría es los 3/5 de la edad de susana ¿ que edad tiene maría?

1 answer:

4 0

Susana=s
maria=m

m= 3s/5

s+m=56
s+(3s/5)=56
(5s+3s)/5=56
8s=56*5
8s=280
s=280/8
s=35

35 --->5/5
x ---> 3/5

x= (3/5)*35 / (5/5)
x=21
edad de maria= 21 años

You might be interested in

PLEASE HELP

Law Incorporation [45]

None of these are correct, however of the ones you listed, A would be the most likely to be correct. y is greater than 3... therefore making y a number greater than zero.

6 0

3 years ago

Goran is riding his bicycle. He rides for 22.5 kilometers at a speed of 9 kilometers per hour. For how many hours does he ride?

astra-53 [7]

Answer: He rides for 2.5 hours or 2 and a half hours.

Step-by-step explanation:

He needs to complete a trajectory of 22.5 kilometers.

He rides 9 kilometers per hour.

Divide the total by the amount of kilometers that he rides.

$\frac{22.5}{9}=2.5h$

6 0

3 years ago

A line with a slope of 3 passes through the point (-1, 2).

Rom4ik [11]

Answer:

y - 2 = 3(x + 1)

y - 2 = 3x + 3

y = 3x + 5

Step-by-step explanation:

8 0

3 years ago

Can you help me solve this because i am stuck on this problem. Thx

sineoko [7]

So 2.5 os to 50, aka 2.5:50
divide each side by 2.5 to get the answer.
if you dont have a calculator, divide each side by 5 to get .5:10, multiply by 2 to get 1:20

7 0

2 years ago

Read 2 more answers

Which fraction and decimal forms match the long division problem?

tensa zangetsu [6.8K]

Answer:

C would be the correct answer. :D

7 0

2 years ago