Answer:
506
Step-by-step explanation:
:. t6 = 46 ... [ Given ]
tn = a+(n-1) d ... [ Formula ]
:. t6 = a+(6-1) d
:. 46 = a+5d ... [1]
Sn = n/2 [2a+(n-1)d] ... [ Formula ]
:. S11 = 11/2 [2a+(11-1) d]
:. S11 = 11/2 [2a+10d]
:. S11 = 11/2x2 [a+5d]
:. S11 = 11[46] ... [ From (1)]
:. S11 = 506
He made $2.80 because if you multiply 70 by .04 it’s 2.8
Answer:
$37.86
Step-by-step explanation:
Multiply 29.99 by 0.0625 to get the sales tax
29.99x0.0625=1.87
Multiply 29.99 by 0.20 to get the tip
29.99x0.20=5.998
Round 5.998 to 6
Add 1.87 to 29.99
29.99+1.87=31.86
Add 6 to 31.86
31.86+6=37.86
Answer:
x=-28
Step-by-step explanation:
you multiply the number first
and you calculate
then you move constant to the right
you changes the sign
done!
10 marbles in each bag...2/10 are striped...2/10(10) = 20/10 = 2 are striped.So in every bag of 10 marbles, 2 are striped. So if there is 3 bags of marbles....then (3 x 2) = 6 are striped. <== he needs 6 striped
