The square root of a number and 8 is 17. What is the number?
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The cost of 1kg of coal mined from the ore is $0.0397
Data;
- 1 ton = $35.99
- 1kg = ?
To find the cost of 1kg of coal, we can simply and equate 1 ton to its equivalent in ton and the solve.
let's write this and equate it
1 ton = $35.99
907kg = $35.99
1kg = x
Let's cross multiply both sides and solve for x
The cost of 1kg of coal is $0.0397
Learn more on proportions here;
The domain would be -2, the x-intercept.