translate the following sentences to mathematical symbols
1. The sum of two numbers is seven
2 .three less than a number is twelve
3. four more than a number is fifteen
4.five less than twice a number is ten
5.five-eigths of a number is twenty
6. the values of the real number X ranges from negative four to seventeen.
7.two is a real number
8. the sum of the squares of two numbers
9.the square of the sum of two numbers
10.the cube of trice a number added to five yield thirty
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Answer:
1. x + y = 7
2. x - 3 = 12
3. x + 4 = 15
4. 2x - 5 = 10
5. 5x/8 = 20
6. {-4 <= (that sign with an equal below a greater sign) x => (less sign with an equal sign below) 17}
7. {x E (that thing in sets) R}
8. x^2 + y^2
9. (x + y)^2
10. 5 + 3x^3 = 30
NOTE:
I'm not sure with number 6, I'm just a junior high school student :-)