Haley is twice as old as Riley. The sum of their ages is 39. Write an equation that represents (x) , Riley's age.
2 answers:
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I don’t know if you were asking for that cause my english is not that good but i hope that i helped you
Answer:
5.43×10^14 or
Step-by-step explanation:
Scientific notation, the number must always be less than 10, in this case 5.43. The exponent represents how much times I moved the decimal point to the left.