20. it is in the tens place
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One possible answer:
"Nathan and Jake make a business deal. Nathan receives three quarters of the money made if he runs Jake's shop for a week. Nathan receives 21 dollars. What was the total amount of money made for that week?"
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the amount they paid includes the price of the two smoothies and tip
since the friends are splitting the bill in 2, then each friend pays only half the amount
each friend pays $ 3.60 each
so the total amount they both paid is 3.60 x 2 = $ 7.20
the cost of one smoothie - $3
therefore the cost of the 2 smoothies - 3 x 2 = $ 6
so they paid 7.20 but the bill was only 6 dollars
so the difference in the 2 amounts is the value of the tip they left
tip = 7.20 - 6 = 1.20
so the percentage of the tip is - tip amount / value of the bill x 100 %
percentage = 1.20 / 6.0 x 100 % = 20 %
they left 20 % of the bill as a tip
Answer:
55 lbs of $0.40 and 45 lbs of $1.40
Step-by-step explanation:
Let's say that we have two buckets, one that weighs x pounds and the candies in it are $0.40 per pound and another that weighs 100-x pounds (because we know the two added together must be 100 pounds) and the candies in it are $1.40 per pound.
There is a third bucket that is made when you combine the two, it weighs 100 pounds and the candies in it are $0.85. Multiply the cents per pound by the pounds of the candy for each bucket and you get this equation:
0.4 * x + 1.4 (100-x) = 0.85 * 100
Solve!
0.4x + 140 - 1.4x = 85
-x + 140 = 85
-x = -55
x = 55
From this we get that 100 - x = 45.
So, the answer is 55 lbs of $0.40 and 45 lbs of $1.40
