Question

5. (a) Find the value of x if 2X-7 x 5X-4 =1250
(b) Find the value of x and y if:
3X-1 = 9 & 4y+2 = 64​

Answer 1

Step-by-step explanation:

 

2^( x - 7 ) × 5^( x - 4 ) = 1250

1250 = 2 × 5 × 5 × 5 × 5

2^( x - 7 ) × 5^( x - 4 ) = 2^1 × 5^4

So, x - 7 = 1

x = 7 + 1 or x = 8

Or

x - 4 = 4

x = 4 + 4 or x = 8

Hence, value of x = 8

mark me brainliest