4. Hannah works as a carpenter and as a blacksmith. She earns $20 per hour as a carpenter and $25 per hour as a blacksmith. Last week she earned a total of $1050. She worked twice as many
hours as a blacksmith as a carpenter. How long did Hannah work as a carpenter last week, and
how long did she work as a blacksmith?

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!

Cis your correct answer

Two because two of one thing is two.