The answer would be C. If you simplify the 12/9 by 3 it would simplify to be 4/3 and 4/3 = 4/3. You can also cross multiply 4/3 = 12/9. 4(9) = 12(3) both would equal 36 so they would be proportional.
The word 'difference' indicates the use of subtraction in a Mathematical sum
The error is that the sum could be 15 - 5y instead of 5y - 15
A subtraction sum does not have the commutative properties, meaning that we cannot do the sum in any order.
A sum 15 - 5y will give a different result with the sum 5y - 15 for the same value of y.
Answer:the nth term of the sequence, Tn= -3n +12
Step-by-step explanation:
The nth term of an arithmetic progression is given as
Tn= a+ (n-1) d
where a= first term
and d = common difference
In this sequence, 9, 6 ,3 ,0, -3, -6 we can see that the number is decreasing by 3
The first term, a= 9
and common difference, d = -3
using our formulae
Tn= a+ (n-1) d
Tn= 9 + ( n-1) -3
Tn=9- 3n+ 3
Tn= -3n +12
Answer:
n = 12 nickels
d = 11 dimes
q = 7 quarters
Step-by-step explanation:
.05n + .1d + .25q = 3.45
n + d + q = 30
n = q + 5
n = 12
d = 11
q = 7
