It's equal multiple of 4 and 13
LCM = 4*13 = 52
I believe that the range is 4.
-4(-11 + 4n) - 3(-2n + 9) Given
44 - 16n + 6n - 27 Distributive property
17 - 10n Combine like terms
17 - 10n is our final answer. :)
Answer:
6.4
Step-by-step explanation:
a number rounded to the nearest tenth is
so our number is
we can forget about the 2
so we can round it
since 3 is less than 5 we don't change the 4 to 5
Let x be the number of nickels and y be the number of quarters.
Then, x + y = 42 --- (1)
It is given that total value = 4.90.
Therefore, 0.05x + 0.25y = 4.9 --- (2)
Multiply (1) by 0.25
0.25x + 0.25y = 10.5 --- (3)
Now, subtract (2) from (3), we get,
0.2x = 5.6
Divide both sides by 0.2.
x = 28
x + y = 42
y = 42 - x
= 42 - 28
= 14
Hence, Mary has 28 nickels and 14 quarters in total.
