I THINK this is how you do it:
4q=76
q=19
19+10 (wrong answers)=29
There was 29 questions in Tim’s test.
Answer:
1. 52
2. 2.9
Step-by-step explanation:
To find the mean, we take all the numbers, add them up then divide by the number of numbers.
1. mean height
mean = (50+54+52+56+48)/5
=260/5
=52
52 inches
2. mean score
There are 5+3+12+2+6+6+4 students = 38 students
Multiply the number of students times the score and add together
total points = (0*5+1*3+2*12+3*2+4*6+5*6+6*4)
= 111
The mean is the total points divided by the number of students
mean = 111/38
=2.92
I believe the answer is 3
Answer:
Step-by-step explanation:
Step 1
3(y+200)=3,000 Remove parenthesis
y+200=1
Step 2
y+200=1 Subtract 200 from both sides
Answer is y=-199