Write each statement as an equation.
1. Some number divided by 6 is 7.
2. Two times the sum of a number and 9 is 20.
3. A number divided by 7 is -35.
4. The square root of some number is equal to 20 plus 5.
5. Twelve decreased by some number is 8.
6. Three times the sum of 8 and a number is 30.
7. To find the area, A, of a circle, multiply the square of the radius, r, by T.
8. One third the sum of 45 and a number is 16.
9. If you multiply a number by 6 and then add 1, the result is 55.
10. Three more than the square of a number is 52.
11. Eight less than some number is -2.
12. One less than the quotient of 25 and a number is 4.
13. The square root of the difference between a certain voltage, V, and 9
is 4.
14. Seven more than one half of the square of resistance, R, is 15.
15. A current of a 15.3 A is the square root of the fraction formed by the
power, P, divided by a resistance of 12.25 2.