Stanford 9 Hints Use the Hints wisely and

Stanford 9 (Hints) • Use the Hints wisely and only after you first try the problem yourself.

Stanford 9 (Hints) 1. ) t = d/6 + 3 when d = 12 substitute 12 in for d.

Stanford 9 (Hints) 2. ) Work backwards on this one. Look at each answer and find the one that matches the problem.

Stanford 9 (Hints) 3. )You don’t really need one do you?

Stanford 9 (Hints) 4. ) Substitute 100 and 125 back into the problem, then solve.

Stanford 9 (Hints) 5. ) In the formula V = lwh substitute the length, width, and height back into the formula, then solve.

Stanford 9 (Hints) 6. ) Look at the graphs and find the one that has a flat rate of 1. 50 and goes up $0. 25 for each ¼ mile traveled. How much would it go up for 1 mile traveled?

Stanford 9 (Hints) 7. ) Plug the values from the table into the equation until you find the one that is true for all the values.

Stanford 9 (Hints) • 8. ) Set up a proportion and solve for x.

Stanford 9 (Hints) • 9. ) The measure of all three angles of a triangle equals 180. And since angle A and angle B are equal we can set up an equation to solve the problem by letting A + B = 2 A and letting the total of all 3 angles = 180.

Stanford 9 (Hints) • 10. ) Find the diameter of the circle and divide it by 2 to find the radius r. then substitute r and 3. 14 back into the equation.

Stanford 9 (Hints) • 11. ) Find the area of the rectangle and then the area of the triangle and compare them in a ratio. • Area = L • W • Area = ½(L • W)

Stanford 9 (Hints) • 12. ) Measure the distance between the 2 endpoints and then count from one point, in the direction of the other, to find the midpoint.

Stanford 9 (Hints) • 13. ) Measure the distance between the 2 endpoints and then put that value into the formula c = d.

Stanford 9 (Hints) • 14. ) Plot the new point and take the same path as the one shown to the 2 nd point.

Stanford 9 (Hints) • 15. )The graph shows the sine ratio for acute angles of rt. Triangles. The sine is found by dividing the length of the side opposite an angle by the length of the hypotenuse. The result of the division is expressed as a decimal. More on next slide

Stanford 9 (Hints) • More 15. ) Find the angle on the graph and trace up to the sine ratio Line and then go across to the sine ratio decimal value. 0 25 •

Stanford 9 (Hints) • 16. ) Sine for angle N = opposite side hypotenuse So 20 is the opposite side and 40 is the hypotenuse. Set up the ratio and use the decimal value in the graph to find the correct angle measure for N.

Stanford 9 (Hints) • 17. ) Count all the different flavors and then set up a proportion of the lemon flavors To the total different kinds of flavors = What your trying to find To the Total of all the pieces.

Stanford 9 (Hints) • 18. ) Since there is a 1/3 probability that a vowel will show, what is 1/3 of 1000?

Stanford 9 (Hints) • 19. ) Find the probability of flips that show all three tails. Then use that value and the total number of flips (48) to determine the number of times you get all three tails.

Stanford 9 (Hints) • 20. ) Use the distribution graph to find all the percentages that are greater than 73.

Stanford 9 (Hints) • 21. ) Follow the steps.

Stanford 9 (Hints) • 22. ) Multiply all the choices together to get the total possible different meal choices.

Stanford 9 (Hints) • 23. ) Plug the a and r values into the formula and then solve.

Stanford 9 (Hints) • 24. ) Count all the whole squares and then combine the partial squares to make other whole squares.

Stanford 9 (Hints) • 25. ) How long is the length of one side of the ? Use that value to find the figure that has a perimeter of 5.

Stanford 9 (Hints) • 26. ) Measure the distances from the town to each radio station and determine which towers are in the range of 350 kilometers. Then decide how many towns can receive broadcasts from only 3.

Stanford 9 (Hints) • 27. ) • Step 1: Determine the total mileage that Morgan travels to work. • Step 2: Calculate the length of each hypotenuse of each right triangle. • Step 3: Add the two hypotenuses. • Step 4: Subtract the two lengths to get the difference.

Stanford 9 (Hints) • 28. )Hint#1: Set up 2 equations for, 1 equation for the total # of coins and another equation for the value of the coins. Then use the addition method for solving a system of equations. • Hint#2: Work backwards and find the correct multiple choice answer that totals $4.

Stanford 9 (Hints) • 29. ) Set up a table and Start with Sam and work back through the problem calculating the total pounds for each person until you get to Vern.

Stanford 9 (Hints) • 30. ) Use the formula for the area of a square (A = L • W). You will then foil the 2 binomials and set them equal to 100. Factor then solve the quadratic.