Answer:
y=1/5x - 500
Step-by-step explanation:
.2=2/10
2/2=1 2/10=5
They ca atrrage themselves 70 times _-___-_____-
N=number of nickels
d=number of dimes
q=number of quarters
example
if n:d=3:8
lets say n=3 and d=8
3*8=8*3
so
8n=3d
slightly confusing but go with it, it migh make sense or it might not
n:d=3:8
8n=3d
d:q=4:5
5d=4q
solve for one of them
solve for nickels in first and quarters in second
8n=3d, n=(3/8)d
5d=4q, (4/5)d=q
5n+10d+25q=690
divide by 5 to make it easeir
n+2d+4q=138
sub (3/8)d for n
sub (4/5)d for q
(3/8)d+2d+5(5/4)d=138
(3/8)d+2d+25/4d=138
3/8+2+25/4=
3/8+16/2+50/8=
69/8
(69/8)d=138
times both sides by 8
69d=1104
divide both sides by 69
d=16
16 dimes
sub back
(5/4)d=q
(5/4)16=q
80/4=q
20=q
(3/8)d=n
(3/8)16=n
48/8=n
6=n
6 nickles
16 dimes
20 quarters
yah
Answer:350
Step-by-step explanation:
i did the same question
Answer:
3
Step-by-step explanation:
The ratio of adult dog to puppies is 3:2
There were 12 puppies that day
Number of adult puppies can be calculated as follows
= 3/2× 12
= 3 ×6
= 18
There were 15 adult dogs in the park on Tuesday
Hence the difference can be calculated as follows
= 18-15
= 3