Answer:
b
Step-by-step explanation:
y = 1y
1y+0.4y =1.4y
1. One way to work mixture problems like this is to consider the effect of all sales being for the smaller amount. In that case, revenue would be 135*$185 = $24,975. That is $2250 less than actual revenue. For each large system sold instead of a small one, there is $50 in additional revenue. The $2250 in additional revenue requires that 2250/50 = 45 large systems be sold.
2. We know that Rafael's overtime pay is $912.60 - 40*$14.40 = 336.60. None of the offered answers computes to the correct pay amount.
If you made a typo and the correct total pay is $921.60, then an overtime rate of 1.5 times base pay will require 16 hours of overtime; an overtime rate of 3 times base pay will only require 8 hours of overtime. Overtime hours = $921.60/$14.40 = 64 equivalent hours. Subtracting 40 hours of straight time, the resulting product of hours and multiplier will be 64 - 40 = 24. That is it could be 16 hours at 1.5 times, or 8 hours at 3 times.
3. One of the problems here is to figure the number of hours in a month. If you consider there to be 4 1/3 weeks in a month, Robin needs to work $3280/(13/3)/14.90 = 50.80 equivalent hours. The 10.80 equivalent overtime hours will be 10.80/1.5 = 7.20 clock hours, closest to 7.25 among the answers. (Other choices for weeks/hours in a month give answers that match none of those offered.)
4. $750/$19.50 = 38.46, closest to 38.50 among the answers offered.
Provate school in 2005
f(t)=85+18t
public school
g(t)=95+15t
graph
easy
replace g(t) and f(t) with y
y=18t+85
y=15t+95
input values for t and get values for y
y=18t+85
when t=0 y=85
when t=1 y=103
plot the oints (0,85) and (1,103)
y=15t+95
if t=0 then y=95
if t=1 then y=110
plot the points (0,95) and (1,110)
the easier way would just to be to solve the equatons but anyway
interscection point is (3 and 1/3,145)
so after 3 years (2008) it is about 145
