Simultaneous equations 2 Homework
Q1
Q2 - With negatives
Work these simultaneous equations out
on paper and write down your answers.
12
P =
10p + 12q = 68
3p + 4q = 20
Q2
9 =
12
11s + 6t = 14
s =
45 + 3t = 10
3 regular pizzas and 2 small pizzas
cost $36.
12 regular pizzas and 6 small pizzas
cost $132.
3a + 2b = 6
a =
12a + 3b = -21
b =
Find the cost of one of each.
6m + 5n = -50
m =
Total
1 regular pizza is $
1 small pizza is $
12m + 3n = -72
n =
[8]
[4]
0
24
Mark
it
Mark it
MacBook Pro

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?