exam Maths Puzzle Numerical Ability

How would I solve this by substitution
6x-3y=6
y=2x+5

Read Solution (Total 0)

exam Other Question

Simplify and write the answer with all exponents positive.

w-1power t-3power s/2-2power s4power t3 power Suppose that Math 103 scores are normally distributed and they have a mean of 80 and a standard deviation of 6.
A) Find the Math 103 Score two standard deviations above the mean.
B)What percent of all scores is greater than 92?