exam
Maths Puzzle
Numerical Ability
you have $3.50 in dimes and quarters. If you have a total of 23 coins, how many of each type do you have?
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please help?
Write each system as a matrix equation. Identify the coefficient matrix, the variable, matrix, and the constant matrix.
{r-s + t = 150
2r + t = 425
s + 3
evaluate
5/2sqrt8