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B-I-N-G-O. SYSTEMS REVIEW. 1. FIND THE SOLUTION. 2. Find the solution. 3. Find the solution. 4. Find the solution. 5. Find the solution. 6. Find the solution. 7. Find the solution. 8. Find the solution. 9. Find the solution. 10. Find the solution. 11. Solve.
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B-I-N-G-O SYSTEMS REVIEW
11. Solve. • Two angles add up to 90 degrees. One angle is ten more than three times the other. Find the measures of both angles.
16. Solve. • A purse contains 21 coins, in nickels and dimes. The total value is $1.65. How many coins of each kind are there?
Answers • Inf many 8. (6,-1) 15. (-3,8) • No solution 9. (2.5,0) 16. d=12 n=9 • (1,-1) 10. (-7,-4) 17. (-6,-2) • (-1,-3) 11. 20 and 70 18. (-1,9) • (3,3) 12. (3,2) • (-4,-8) 13. (9,4) • (-4,1) 14. (10,-6)