The first is proportional the second is proportional and the third is not proportional
2,520/x = 60
x = 42, which means your answer is B.
2,520/42 = 60
Answer:
The number of
Quarters = q = 58 quarters
Nickels = n = 32 nickels
Step-by-step explanation:
It is important to note that:
A quarter is worth 25 cents = 0.25q
A nickel is worth 5 cents = 0.05n
George has only Quarters and nickels in his piggy bank.
Let the number of
Quarters = q
Nickels = n
He has a total of 90 coins.
Hence,
q + n = 90.... Equation 1
q = 90 - n
The value of the coins is $16.10.
Hence,
0.25q + 0.05n = 16.10....Equation 2
We substitute 90 - n for q in Equation 2
0.25(90 - n) + 0.05n = 16.10
22.5 - 0.25n + 0.05n = 16.10
Collect like terms
- 0.25n + 0.05n = 16.10 - 22.5
-0.2n = - 6.4
n = -6.4/-0.2
n = 32 nickels
Solving for q
q = 90 - n
q = 90 - 32
q = 58 quarters
Therefore, the number of
Quarters = q = 58 quarters
Nickels = n = 32 nickels
I would say the first one 3.30 and for 2.the 4th chart
The place values in 5.6 and 1.78 are the positions of the digits in the numbers
- The largest place value common in 5.6 and 1.78 is the ones place
- Nichole is correct
<h3>How to determine who is correct?</h3>
In a number, the non-zero digit at the left-most position is the greatest place value
This means that:
The greatest place value in 5.6 is 5 (i.e. ones place)
The greatest place value in 1.78 is 1 (i.e. ones place)
So, we can conclude that the largest place value common in 5.6 and 1.78 is the ones place
Hence, Nichole is correct
Read more about place values at:
brainly.com/question/12386995