The length is: 42 inches
The width is : 21 inches
Step-by-step explanation:
Car A travels at the speed = 50km
Car B travels at the speed = d/h km /h
Car C travels at the speed = 135 ÷ 5 = 45 km
So Car A travels the fastest
The number of students would not change between before the test and after the test. 3+8 and 4+7 both = 11 so finding out how many students would equal one ratio can then be used to find how many equal 3 and 8.
If 92 students are equal to 4 in the ratio, then 1 in the ratio is worth 23 students. This is important as then when you times 23 by 7 you find out how many students there are in the regular maths class, 161 students. Plussing these two together gives you a total of 253 students.
Using this 253 you can divide it by 11 to find out how much 1 number would be in the ratio, it equals 23. Using this you can then times 23 by both 3 and 8 to find the original class sizes, 3x23 = 69, and 23x8 = 184.
Making the origional class size of the advaced class 69 studnets, and the regular maths class size 184.
Answer:
All systems have 2 real solutions.
Explanation: there are X and Y unknowns.
your answer would be 9 fish are left in the tank
