Since 75% = 3/4
then $15 = 3/4 of the original price
Divide 15 ÷ 3 to get the 25% of the original price
(1/4 of the price)
15 ÷ 3 = 5
$5 is the 25% of the original price
so, if 25% + 75% = 100%
then $5 + $15 = $20
The original price for the sweaters was $20.
Any Questions? Please leave a comment ! (:
there are 10 numbers you want either a 4 or 7 ( 2 numbers)
so probability is 2/10 which reduces to 1/5
Answer:
160 miles per hour
Step-by-step explanation:
640/4=160
960/6=160
Answer:
$28 dollars is the new cost
Step-by-step explanation:
$40 - 30% = $28
Using Gauss's method
Total number of terms = [15-(-129)]/4+1=36+1=37
Add
S=15+11+7+....-125-129
S=-129-125-...+7+11+15
--------------------------------
2S=-114-114-114...(37 times)
=>
sum=S=(1/2)*(-114)*37=-2109
Using AP, T(n)=15+11+7+....-129
T(n)=19-4n => T(1)=15, T(37)=-129
S(n)=(1/2)(37)(T(1)+T(37)=(1/2)37(15-129)=2109