Question

The sum of two numbers is 45 and their ratio is 7: 8. Find the numbers.
The sum of three consecutive multiples of 9 is 459. Find the numbers​

Answer 1

Answer:

hope it helps you

Step-by-step explanation:

a) let two numbers = 7x and 8x

7x + 8x = 45

15x = 45

x = 45/15

x = 3

b) let first number = x

second number= x+9

third number = x+18

equation is x+x+9+x+18 = 459

3x + 27 = 459

3x = 459 - 27

3x = 432

x = 432/3

x = 144

first number = 144

second number = 153

third number = 162

Answer 2

Step-by-step explanation:

Let the numbers be 7x and 8x

A/Q

7x+8x=45

15x=45

x=45/15

x=3

Therefore the numbers are 7(3)=21 and

8(3)=24.

Let the three consecutive multiples of 9 be

x+9, x+18, x+27

A/Q

x+9+x+18+x+27=459

3x+54=459

3x=459-54

3x=405

x=405/3

x=135

Therefore the numbers are 135+9=144

135+18=153

135+27=162

HOPE THIS HELPED YOU