ACT Problem Yvette has 5 more nickels than
ACT Problem Yvette has 5 more nickels than dimes. If the value of her money is $1. 30, how many coins of each kind does she have? A. B. C. D. E. 12 dimes and 7 nickels 5 dimes and 16 nickels 5 dimes and 10 nickels 7 dimes and 12 nickels 3 dimes and 20 nickels
ACT Problem Yvette has 5 more nickels than dimes. If the value of her money is $1. 30, how many coins of each kind does she have? Now, there are only two cases where there are five more nickels than dimes: A. B. C. D. E. 12 dimes and 7 nickels 5 dimes and 16 nickels 5 dimes and 10 nickels 7 dimes and 12 nickels 3 dimes and 20 nickels
Act Problem Now, we will evaluate the two equations to find which is equal to $1. 30. C. 5 dimes and 10 nickels = 5 x(. 10) + 10 x(. 05) = $1. 00 D. 7 dimes and 12 nickels = 7 x(. 10) + 12 x(. 05) = $1. 30 D is the only one that works.
ACT Problem Thus, going back. Yvette has 5 more nickels than dimes. If the value of her money is $1. 30, how many coins of each kind does she have? A. B. C. D. E. 12 dimes and 7 nickels 5 dimes and 16 nickels 5 dimes and 10 nickels 7 dimes and 12 nickels 3 dimes and 20 nickels
Slope-Intercept Form
Friday Test (#1 -12) Graph line segments, find their slope and tell whether they are parallel, perpendicular or neither (#13 -24) Find distance and slope (#25 -26) Distance challenge problems Bonus – Multidimensional distance problem
Challenge Problem Review •
Challenge Problem Review Name a point that is 5 units away from (1, 2)? Recall that we can simply count distances of segments with a slope of 0 or undefined. So, let us keep the y the same and go over five. Consequently, we get the answer (6, 2).
More Examples •
Quadrants
- Slides: 10