Answer:
1/40
Step-by-step explanation:
2/4*7/10
=2/28/10
=0.0714/10
=0.00714
Answer:
It would take 336 seconds
Step-by-step explanation:
Set up as a proportion:
50 meters/21 seconds = 800 meters/x
Then we cross multiply to find the answer:
336 = x
Answer:
The are 8 dimes and 12 nickels
Step-by-step explanation:
1.We set n+d=20 because 20 is the total number of dimes and nickels in the jar.We have $0.05 n because for ever nickel,we earn $0.05.Adding this to the value of dimes,represented similarly by $0.1,then we set this to the amount of money we have in total,which is $1.40.
2.Subtract d from both sides of the first equation to get it by itself.Substitute-d for n in the second equation.The divide both sides by 0.5 to obtain the answer.
3.Substitute 8 in for d to obtain the value or n.
Answer:
a = 19
Step-by-step explanation:
a=2b-c
a= 2(11) - 3
a = 22 - 3
a = 19
