Answer:
x = 12
y = 9
12 coins of dimes
9 coins of quartes
Step-by-step explanation:
x ---> coins of dimes
y ---> coins of quartes
x + y = 21
0.1x + 0.25y = 3.45 * 100
x + y = 21 L1
10x + 25y = 345 L2
x = 21 - y
Reemplace in L2
10(21 - y) + 25y = 345
210 - 10y + 25y = 345
15y = 345 - 210
15y = 135
y = 9
x = 21 - y
x = 21 - 9
x = 12
6 pairs of shorts, for a
"s" dollars. A blazer costs 3 times as much, she bought one. The total was 139.50
6s + 3(6s) = 139.50
6s + 18s = 139.50
25s = 139.50 Divide everything by 25,
s = 5.58, which is how much the shorts were. Now for the blazers ;
It said they were three times the cost of shorts, if shorts are 5.58, it is 3*5.58.
3s
3(5.58)
16.74
The blazer cost 16.74
Answer:
not me :/
Step-by-step explanation:
i dont have my gifts ready yet xD
Answer:
Line S
Step-by-step explanation:
Answer:
No, this spigot doesn't fill at a faster rate.
Step-by-step explanation:
The first spigot can fill a pool with 9 gallons of water in a minute. Whereas the second spigot can only fill a pool with 8 gallons of water in a minute. Therefore, the second spigot fills at a faster rate.
