The pairs of numbers that multiply to 90 are (1, 90), (2, 45), (3, 30), (5, 18), (6, 15), and (9, 10).
To find two numbers that multiply to equal 90, we can look for pairs of factors of 90.
The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.
To determine the pairs of factors that multiply to 90, we can list the pairs:
1 × 90 = 90
2× 45 = 90
3 × 30 = 90
5 × 18 = 90
6 × 15 = 90
9 × 10 = 90
Therefore, the pairs of numbers that multiply to 90 are: (1, 90), (2, 45), (3, 30), (5, 18), (6, 15), and (9, 10).
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2) Picking a purple marble?
3) Picking a red or white marble?
4) Picking a marble whose color has 5 letters in it?
Answer:
1.) Chances of picking a black marble: 28/81 or 34.6%
2). 0/81 chances of picking a purple marble or 0%
3.) Chances of picking a red or white marble: 35/81 or 43.2%
4.) Chances of picking a marble whose color has 5 letter in it: 40/81 or 49.4%
Step-by-step explanation:
Because 2x and 40° are complementary angles.