The answer should be 2x-2 :)
Set it up as a proportion
115/5=n/15
And then you cross multiply
5•n=15•115
5n=1725
n=345 miles
We will represent everything in cents
nickles are worth 5 cents and dimes are 10 cents
n=number of nickles
d=number of dimes
60 total coins
n+d=60
total is 430 cents
5n+10d=430
divide both sides by 5
n+2d=86
we gots
n+d=60 and
n+2d=86
eliminate
multiply first equation by -1 and add to 2nd equation
-n-d=-60
<u>n+2d=86 +</u>
0n+1d=26
d=26
so
n+d=60
n+26=60
n=34
34 nickles and 26 dimes
Answer:
In complete questions, the completed question is in ask details
Step-by-step explanation:
Maureen has 3shops
Each sells 500bagels per day
shop A
Total bagels sample is 50 and 10 whole wheat bagels
Shop B
Total bagels sample is 100 and 23 Whole-wheat bagels
Shop C:
Total bagels sample is 25 and 7 Whole-wheat bagels.
It is noticed that the simple space of shop B is more than shop A, notice that shop B sample space is small and it can not give a reasonable valid inference.
Then, Both shop A and shop B sample space is large enough to give a reasonable valid inference
Answer:
are you just typing
Step-by-step explanation:
