Answer:
250 nickles
Step-by-step explanation:
Nickles and dimes are coins with different currency values. One nickel(N) is equal to 5 cents while one dime(D) is equal to 10 cents. The ratio of nickel:dime is 5:7, to put into the equation it will be:
N/D= 5/7
7N=5D ---> 1st equation
There are 350 dimes, the equation will be:
D=350 ----> 2nd equation
We can find out the number of nickels by substitute the 2nd equation into the first. The calculation will be
7N=5D
N= 5D/7
N=5(350)/7
N= 250
This is not an integer; an integer is a whole number that can be positive, negative, or zero such as -1, 0, and 1.
Multiply 2878 three times.
23,838,140,152
Hope this helps :)
2.7 would be 2 7/10. Correct?
The answer is B because r is negative and less than the critical value.
