2 years ago

Find the ratio a:b, if it is given that a+b=3b

Mathematics

1 answer:

Darya [45]2 years ago

8 0

Answer:

Step-by-step explanation:

a + b = 3b

a = 3b - b

a = 2b

a/b = 2/1

a:b = 2:1

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The ratio of two numbers is 7 to 5 the sum of the numbers is 24 what are the numbers

statuscvo [17]

Answer:

The numbers are 14 and 10

Step-by-step explanation:

Let the numbers be

$x:y=7:5$

This implies that,

$\frac{x}{y}=\frac{7}{5}$

$x=\frac{7}{5}y$

The sum of the numbers is 24.

$x+y=24...(2)$

Put equation (1) in (2)

$\frac{7}{5}y+y=24$

$\frac{12}{5}y=24$

$y=24\times \frac{5}{12}$

$y=10$

$x+10=24$

$x=14$