math

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Across
  1. 3. + 5) - 7= 3(x - 2)
  2. 6. postprandial exercises were sit-ups and push-ups. The ratio of sit-ups to push-ups was 7 to 2. If Hominoid did 9180 exercises, how many were push-ups?
  3. 10. The crowd in Berlgrade town square was made up of Croats and Serbs in the ratio of 5 to 9. If there were 18,000 Serbs, how many Croats were there?
  4. 11. average of 5 numbers is 790.6. If the first four numbers are 80.2, 91.6, 123, and 204.7, what is the sum of the 5 numbers.
  5. 18. a number plus 6 is twelve, what's the number?
  6. 19. What number is 190% of 30
Down
  1. 1. -42
  2. 2. defense budget was spent on halberds and other armor in the ratio of 2 to 19. If the total budget was 84,000 farthings, how much went for halberds?
  3. 4. is the quotient of 56 and -2?
  4. 5. is the product of -4 and +6?
  5. 7. is the value of 8x - 6 when x is equal to -1?
  6. 8. + x = 1064
  7. 9. the least common multiple of 18, 35, and 40.
  8. 12. the least common multiple of 21, 24, and 60.
  9. 13. -2 - 2(-2) + (-2)(-2)
  10. 14. If x+1=4 and y-2=3, find the value of x^2 - y^2.
  11. 15. -2 - 3(6)
  12. 16. solve for x: 2x - 5=11
  13. 17. - |x^3| if a= -3 and x= -2