Across
- 3. How many significant figures does the answer to this solution have? 55.924 + 28.702 + 93.352
- 4. In the relation C/5 = make (F - 32)/9 make F as the subject and only write the denominator in the answer
- 7. In a trapezium ABCD, AB∥CD. Calculate ∠D if ∠A = 24° and ∠B = 59°.
- 9. A bus departed from New York at 11 pm with 44 passengers. An hour later, a few passengers got off at New Jersey. The number of passengers who boarded the bus in New Jersey was twice the number of passengers who got off the bus. If the bus has 50 passengers now, how many passengers got off the bus in New Jersey?
- 10. Parents donated fudge for the fundraiser for your classroom. 40 pounds of chocolate fudge sold for $2.15 per pound and vanilla fudge sold for $1.90 per pound. Your class made $181. How many pounds of vanilla fudge was sold?
- 11. Jasmine is designing boxes she will use to ship her jewellery. She wants to shape the box like a regular polygon. In order for the boxes to pack tightly, she decides to use a regular polygon that has the property that the measure of its interior angles is half the measure of its exterior angles. What regular polygon should she use?
- 13. When I dropped a plate on the floor, I saw that it completed two complete revolutions and one-third of a right angle turn. How many degrees did this plate rotate in total?
- 15. -15 + (30 ÷ 5 × 6 ÷ 2) × 9 - 3
- 16. Mary can paint a house in 12 hours. If Nancy helps, it takes them 3 hours. Without help, how long would it take Nancy to complete the same job?
- 19. ½(2x-6) = ¼(8-12x) Solve for x. Write only the denominator in the answer.
- 20. The population of the United States was roughly 7.52 * 10^9 last year. Food cost an average of $721 per person in the United States last year. What was the total amount spent on food in the United States last year? Work out your answer in standard form, and then write down how many zeros you got.
- 21. Solve. 7 * 10^8 * 6 * 10^5. Work out your answer in standard form, and then write down how many zeros you got.
- 22. Is 5xy - 25x^3y^2same as 5xy(1-5x^2y)
Down
- 1. What comes next? 23, 40, 74, 142
- 2. What comes next? 52, 65, 39, 78, 26
- 5. In the Uffizi Gallery in France, there is a room built by Napoleon I called the Tribune. The room is shaped like a regular octagon. What angle do consecutive walls of the Tribune make with each other? Don’t mention the degree symbol.
- 6. In the formula, l = a + (n - 1)d makes d as the subject. Find d when l = 10, a = 2, n = 5.
- 8. (3x+1)/x * 21/4 = 35/2 Solve for x. Write only the numerator.
- 10. Is 64x^2y^2-81z^2same as (8xy - 9z)(8xy - 9z)
- 12. 4 x (7 x 4²) ÷ 4 + 74 – 16
- 14. Joe is editing a photograph on his laptop. He rotates the photograph 120° degrees clockwise. He then rotates it another 160° degrees clockwise. If he continues turning the photo in a clockwise movement, how many degrees will Joe need to turn it to have made a complete 360° degree turn?
- 17. A kilogram has 1000 grams in it. How many significant figures does this number have?
- 18. In a rectangle, one diagonal is inclined to one of its sides at 42°. Measure the acute angle between the two diagonals.
- 20. Joan takes 24 hours to reupholster furniture. It takes Fred 48 hours to complete this job. How long would it take if they worked together?