Let
n-------> the number of nickels
d-------> the number of dimes
we know that
so
-----> equation A
-------> equation B
substitute equation B in equation A
------> equation that can be used to find n
Solve for n
find the value of d
therefore
the answer is
The equation that can be used to find n is
The number of nickels in the collection is
Answer:
X = 5
Step-by-step explanation:
3x + 4 = 19
-4. -4
3x = 15
divide both sides by 3 to solve for x
x = 5
calories. How many calories does the
smaller candy bar have?
Answer:
x= 1/a and a= 1/x
Step-by-step explanation: