Answer:
3C + 5 T = 550
C+T= 122
PUT IN 1 T= 122-C
3C + 5 (122-C)=550
3C -5C + 610=550
-2C= 550 - 610= -30
C= 15
T= 122-15 = 107
Step-by-step explanation:
Aeryn laid 12 bricks on her first day.
12+16=28, 28+20=48, 48+24=72, 72+28=100
Day 1: 12
Day 2:28
Day 3:48
Day 4:72
Day 5:100
The answer is c. You find the price per ounce. 4.29/24 = .178 then 3.49/18= .193 then 6.39/39= .163 and 2.49/14 = .177. The cheapest is c. Hope this helps!!!
To convert the distance that is given in yards to miles, we use the conversion factor,
1 yard = 0.000568 miles
which is also equal to
1 mile = 1760 yards
With these conversion factor we convert the given,
(2180 yards) x (1 mile / 1760 yard) = 1.24 miles
Answer: 680
Step-by-step explanation:
When order doesn't matter,then the number of combinations of choosing r things out of n = 
Given: Total participants = 17
From these, a group of 3 participants is to be tested under a special condition.
Number of groups of 3 participants chosen = 
Hence, there are 680 groups of 3 participants can be chosen,.
