Answer:
Step-by-step explanation:
Define number of videos purchased as "n" and number of CD's purchased as "c" then we can equation the total purchases and the costs by:
8 nephews:
n + c = 8
Spent $121.53
14.95*n + 16.88*c = 121.53
Substitute one variable as a function of the other. Preference the simpler equation (n + c = 8)
n = 8 - c
=>
14.95*(8-c) + 16.88c = 121.53
119.60 + 1.93c = 121.53
1.93c = 1.93
c = 1
=>
n = 7
*Check:
14.95*(7) + 16.88*(1) = 121.53
im so sorry if this is wrong :/
Answer:
12.8 years
Step-by-step explanation:
Put the given numbers into the model and solve for t.
It will take about 12.77 years for the population to triple at the current growth rate.
Answer:
3.6
Step-by-step explanation:
tan61=x/2
2(tan61)=x
3.6=x
Answer:
x=70
Step-by-step explanation:
angle FED and GEC are vertical angles so they both equal 50
angle DEB and CEA are also vertical angles so they both equal 20
50+20=70
Plot a point at (-6, 0) with a open circle and a line going vertical or parallel to the y axis. then shade where (0,0) is