Answer: Sally paid less
Step-by-step explanation:
From the question, Sally paid $1.50 for 2 1/2 pounds of apples at the Grocery Mart. The cost per pound of apple will be:
= $1.50 ÷ 2 1/2
= $1.50 / 2.5
= $0.6 pee pound of apple
Fred paid $1.95 for 3 pounds of apples at the Corner Fruit Stand. The cost per pound of apple will be:
= $1.95 / 3
= $0.65 pee pound of apple.
Sally paid less
Well to do this you would have to find the LCM (least common multiple) of 4 and 3. so, if you line up all of the multiples of 4
4,8,12,16,20,24,28,32,36,40....
and the multiples of 3
3,6,9,12,15,18,21,24,27,30,33....
the least multiple that they both have is 12
Answer: 20 hours
Step-by-step explanation:
Since, One watch is slow and loses two minutes every hour
⇒ 1 hour of slow watch = 62 minutes
And, the other one is fast and gains one minute every hour.
⇒ 1 hour of fast watch = 59 minutes,
Hence, in 1 hour, the difference between slow and fast watch in 1 hour = 62 - 59 = 3 minutes.
⇒ The between slow and fast watch in 20 hours = 20 × 3 = 60 minutes or 1 hour.
Hence, after 20 hours the difference between the watches will be 1 hours.
If you would like to know what is the solution to the system of equations, you can calculate this using the following steps:<span>
2d + e = 8
d - e - 4 = 0 ... d = e + 4
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</span>
<span>2d + e = 8
</span><span>2 * (e + 4) + e = 8
2e + 8 + e = 8
3e = 0
e = 0
d = e + 4 = 0 + 4 = 4
(d, e) = (4, 0)
The correct result would be: C. The solution is (4, 0).</span>