Question

17.The numbers are in the ratio 3: 5. If each number is increased by 10, the ratio

becomes 5: 7. Find the numbers.​

Answer 1

Answer:

x=5

3x= 3×5=15

5x= 5×5=25

Answer 2

Answer:

x=38.33

y=-5

Step-by-step explanation:

Let the numbers be 3x & 5x

When the nos. are increased by 10,they become.. 3x+10,5x+10

let the new nos. be 5y, 7y

3x+10=5y

5x+10=7y

=

3x-5y=-10

5x-7y=-10

then we get...

15x+25y=-50

15x+21y=-30

by solving, we get

15x+25y=-50

-15x-21y=30

4y=-20

y=-5

15x+25(-5)=-50

15x=-50+625

15x=575

x=38.33