Answer:
Total cost of topps card = $104.5
Step-by-step explanation:
Given:
Cost of each topps card = $5.50
Cost of each fleer card = $3.90
Total number of cards = 46
Total cost = $209.80
Find:
Total cost of topps card
Computation:
Assume;
Number of topps card = T
Number of fleer card = F
So,
T + F = 46.......eq1
and
Total cost of topps card = 5.50T
Total cost of fleer card = 3.90F
So,
5.50T + 3.90F = 209.80.....eq2
eq1 x 3.90
3.90T + 3.90F = 179.4.......eq3
eq2 - eq3
1.6T = 30.4
T = 19
Number of topps card = 19
Total cost of topps card = 5.50(19)
Total cost of topps card = $104.5
Answer:
Step-by-step explanation:
Áp dụng định lý Pitago trong tam giác vuông:
Tính các cạnh cộng lại sẽ ra chu vi
AB=5
AD=7.211102551
BC=2.828427125
CD=7.280109889
S= AB+BC+CD+AD
Answer:
square root of 3
Step-by-step explanation:
...................
The three sides have the same length