Of the 15 year olds at karate school 8 have black belts in 20 had Brown belts among 16 year olds 10 have black belts in 17 have Brown belts. which age group has a higher ratio of black belts to Brown belts

1. Chris and Daniel received votes in the ratio 3:4. If the total votes is 224, how many votes did chris receive? 2. Two numbers are in the ratio 5:8. If the difference is 27. What is the sum of the two numbers? 3.

What is the square root of 70 million

What is the value of x in the solution of the system of equations 3x+2y=12 and 5x-2y=4

Round the mixed number to the nearest 1/2. 4 2/3 A. 4 B. 4 1/2 C. 5

If Karen uses her cell phone for less than 30 minutes a month, which company should Karen choose? Why

Simplify the expression 1/2 (-12m+38) A. - 6m + 38 B. - 6m + 76 C. - 24m + 19 D. - 6m + 19

How does doubling the side lengths of a triangle affect its area?

Which expressions could complete this equation so that it has an infinite number of solutions? 9x-3 (x+8) = A. 6x-24 B. 6 (x-3) + 6 C. 14+5x-34 D. 8 (x-3) - 2x

The number of horses occupying stalls at the county fairgrounds can be modeled by the following function, where x represents the number of days since the first of June. h (x) = -3x^2+30x+225.

Erik took a trip to see his friend Mike who lives 308 miles away. He left his place at 10 AM driving at 70 mph. In 2 hours, his friend Mike left his place driving towards Erik at an average speed of 50 mph. At what time will they meet?