The ratio of 160 to 420 can be simplified by dividing both numbers by their greatest common divisor, which is 20. This simplifies the ratio to 8:21. This means that for every 8 units of 160, there are 21 units of 420.
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3+7=10 (3 and 7 are both ratio numbers) 420/10=42 (10 is the sum of both ratio) 3x42=126 girls (3 is ratio of girls) 7x42=294 boys (7 is ratio of boys)
Ah, what a happy little question! To find the equivalent ratio to 16:6, we can simplify it by dividing both numbers by their greatest common factor, which is 2. So, 16 divided by 2 is 8, and 6 divided by 2 is 3. Therefore, the equivalent ratio is 8:3. Remember, there are no mistakes in ratios, just happy little simplifications!
72 is 8/5 of 42, or 160% of 45
95 : 160 = 19 : 32
To find the first term and common ratio of a geometric progression, we can use the formula for the nth term of a geometric sequence: (a_n = a_1 \times r^{(n-1)}). Given that the 6th term is 160 and the 9th term is 1280, we can set up two equations using these values. From the 6th term, we get (a_1 \times r^5 = 160), and from the 9th term, we get (a_1 \times r^8 = 1280). By dividing the two equations, we can eliminate (a_1) and solve for the common ratio (r).