N=number of nickles
d=number of dimes
p=number of pennies
so we have
"twice as many nickles as dimes"
n=2d
"five times as many pennies as dimes"
p=5d
we know that the total value is 200 cents
value=5n+10d+1p
200=5n+10d+p
we know that
n=2d
p=5d
sub those for n and p
200=5(2d)+10d+5d
200=10d+10d+5d
200=25d
divide both sides by 25
8=d
there are 8 dimes
easy, sub
n=2d
n=2(8)
n=16
16 nickles
p=5d
p=5(8)
P=40
40 pennies
40 pennies
16 nicles
8 dimes
Answer:
5
Step-by-step explanation:
To find out how many times a 2 should be rolled in 30 tosses, take the probability times the number of tosses
Number of two's = 30 * 1/6
=5
We should get 5
Answer:
the price of one battery is 50 cents plus tax
Step-by-step explanation:
the price of one battery is 50 cents because if you count by 50s its 4 dollars and then plus tax it would be around 4.72.
Answer:
1) P(tacos)= 10/30= 1/3
2) P(Pizzas)=18/30 =3/5
3) P(T AND P)= 5/30= 1/6
4) P(T OR P)= P(T) +P(P) - P(T AND P)
= 10/30 +18/30 -5/30
= 23/30