I’m pretty sure u just have to subtract 225-80
Answer:
X=10
A=84
Step-by-step explanation:
5x+34+2x+76=180
7x+110=180
7x=70
x=10
For A
5(10)+34
84
1/3 just means divided by 3. So that means that the number of girls times 3 equals the total students. So 12 x 3= 36. 36 is the total number of students in class. To find boys just subtract 12 from 36. 36-12=24. Answer TO PART A is 24. Now for 2nd one, just divide the number of girls by 2. ANSWER TO PART B IS 6
The average speed is 32.14