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dedylja [7]
3 years ago
5

The sum of a number and -15 is equal to the product of that number and 1/4.what is the number

Mathematics
1 answer:
Zolol [24]3 years ago
3 0

Answer:

10

Step-by-step explanation:

(x−a)(x−b)=x2−(a+b)x+ab

Hope this was helpful----

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Try this solution:

1. Note, that 9*0.1=0.9; 0.9*0.1=0.09; 0.09*0.1=0.009, etc.

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