If there are 15 questions on a test and we are using a 100 point scale, how many points in each question worth? How many do you need to answer correctly to pass the test if a passing score is 70?

Question

solomonzelman · Answer

x ÷ 15 = each question is worth.

solomonzelman · Answer

where x=100

solomonzelman · Answer

each question - 6.67

solomonzelman · Answer

6.67b = 70
b=70 ÷ 6.67 =10.49 ≈ (rounding up to find the least number of questions to pass) 11

anonymous · Answer

i need help with two more problem 1.1+5n-1=0
2.3=-5m+4m

solomonzelman · Answer

1.1+5n-1=0          and   2.3=-5m+4m

I think it is written incorrectly, please check

anonymous · Answer

number one is 1+5n-1=0
number two is 3=-5m+4m

solomonzelman · Answer

ohh, I thought it is a system of equations.

solomonzelman · Answer

1+5n-1=0  →    5n=0   →  n=0
3=-5m+4m  →     3 = -m    →   m=-3