.25(4) = 1 gallon
.25(8) = 2 gallons
.25(12) = 3 gallons
.25(16) = 4 gallons
.25(20) = 5 gallons
it would take 20 minutes to remove half the water (aka 5 gallons)
Answer: D. 2,800
Explanation: (3•1,000)= 3,000
(2•100)= 200
3,000-200= 2,800
Answer:
It would be -x
Step-by-step explanation:
when you divide a positive by a negative you get a negative which singles out x.
-1x could be simplified down to just -x which singles out that answer too
Cross multiply.
14/12=x/18
14 x 18 = 252
252/12= 21
so x=21
Answer:
3 pairs for the price of two.
Step-by-step explanation:
$10 per pair
then:
3 pairs costs $20
20/3 = $6.6667 each pair
- Buy one and get 25% of the second
25% = 25/100 = 0.25
then:
first pair $10
second pair: 10 - (10*0.25) = 10 - 2.5 = $7.5
first + second pair = 10 + 7.5 = 17.5
2 pairs costs $17.5
17.5/2 = $8.75 each pair
then:
the best deal:
3 pairs for the price of two.
