the product of two numbers is 1575 and their ratio is 9:7 find the numbers
Answers
Answered by
3
Answer:
35 and 45
Step-by-step explanation:
Product of two numbers=1575
Let us assume the numbers are x1 & x2.
x1*x2=1575———-(Equ 1)
And the numbers ratio is 9:7
x1/x2 =9/7
x1=(9/7)*x2——-(Equ 2)
Substitute Equ 2 in Equ 1
(9/7)x2*x2=1575
(9/7)*x2^2=1575
x2^2=1575*(7/9)
x2^2=1225
x2=35
Substitute x2 value in Equ 1
x1*35=1575
x1=45
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Answered by
8
Step-by-step explanation:
let x and y be the two numbers
xy = 1575
x = 1575/y—(1)
x:y = 9:7
7x = 9y
x = 9y/7—(2)
from (1) & (2)
1575/y = 9y/7
11025 = 9y^2
1225 = y^2
y = 35
x = 45
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