Answer:
No
Step-by-step explanation:
I know because if you take 20 percent of 60 you get 12.
60 × .20 = 12
But, that doesn't mean the sweater is $12, you only calculated the discount.
next, take 60-12= $48
She should've been charged $48
Answer: 3
Explanation: If you cross multiply, 1x18= 18
And 18/6 equals 3
Hope this helps!
Answer:
Your answer is 1/3. I hope this helps.
Answer:
<u>Sum</u><u> </u><u>is</u><u> </u><u>2</u><u>0</u><u>,</u><u>9</u><u>3</u><u>5</u><u>.</u>
Step-by-step explanation:
This is an arithmetic progression.
Sum:
n is the number of terms, n = 79
S is the sum
a is the first term, a = -8
d is common difference, d = -1-(-8) = 7
substitute:
Answer:
30th term is
9(30+3) =270+27=297
to find the first term which is larger than 100
9(n+3) =100
9n=100-27
9n=73
n=73÷9
=8.1
so when n is>8.1 all the terms will be larger than 100 and the first term will be 9 since n can't be fraction as it's an ordinary number
so it's 9th
9(9+3) =81+27=108
the first four terms are
9(1+3) =36
9(2+3) =45
9(3+3) =81
9(4+3) =63
Step-by-step explanation:
n(n-1)
the first four terms are
1(1-1) =0
2(2-1) =2
3(3-1) =6
4(4-1) =12
the 10th term is 10(10-1) =90
to find weather 51 is a term or not
n(n-1) =51
n^2-n-51=0
1-4×1×-51=1+204=205
so it's roots will be fraction
so it's not from its terms because n will
be fraction
to find the term 182
n(n-1) =182
n^2-n-182=0
(n-14) (n+13)=0
so it's the term 14th because n can't be negative