Ans the question with solution
Attachments:
Answers
Answered by
1
x:y:z = 2:3:5
x+y+z =100
x = 100 × 2/10 = 20
y = 100 × 3/10 = 30
z = 100 × 5/10 = 50
y = ax - 10
30= a × 20 - 10
20a = 40
a = 2
bubbles15:
u'll get all your answers
OK means whenever proportional number like here 2 is given that we have to divide by 10 and multiple by sum???
No 10 is the given value
let me make this question more easier for you to understand it properly....
suppose a value constant in this question is 'k'. Now, the sum 100= x+y+z... we know the proportional values of x,y and z, and we have a value constant which is in the given question is 10. so, k=10 multiply with that .... i.e, 100 = k(2+3+5).... now we know those are proportional so 2k= 20, 3k=30, 5k =50...... Now from question... y= ax -10... put the values and u will get the answer.
if u are confused from previous answer try to solve it like this... it is easier than that...
The numbers x, y, z are respectively proportional to 2, 3, 5 and the sum of x, y and z is 80. If the number z is given by the equation z = ax-8, then a is
give this question a try by using both method..... I hope this will help u
thank you very much uhhh..... it really really helped me
wlcm ☺️
Similar questions