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Scrat [10]
2 years ago
13

Joey ran 10 km in 10.5 hours. What was his average speed? Please show all work and answer seriously.

Mathematics
2 answers:
vovikov84 [41]2 years ago
6 0
His average speed is 1.5 hours per 1 km
ELEN [110]2 years ago
4 0

Joey's average speed is 1.5 hours for 1 km

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Step-by-step explanation:

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Please HELPPPPP!!! <br><br> I DONT KNOW WHY IM GETTING THEM WRONG
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n = -33

Step-by-step explanation:

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If xt = 3y -1 and us = 28, find the value of y
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Kim took out a $55,000 loan for college. She is borrowing money from two banks. Bank A charges an interest rate of 8%, and Bank
stellarik [79]
Kim's Loan:
Let A =  amount borrowed from bank A.
Let B =  amount borrowed from bank B.

The total loan is $55,000.
Therefore
A + B = 55000                  (1)

Bank A charges 8% interest. The interest after 1 year is 0.08A.
Bank B charges 11% interest. The interest after 1 year is 0.11B.
Total interest after 1 year is $5,000.
Therefore
0.08A + 0.11B = 5000      (2)

From (1), obtain
B = 55000 - A                  (3)

Substitute (3) into (2).
0.08A + 0.11(55000 - A) = 5000
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Answer:  Kim borrowed $35,000 from bank A.

Jack's Loan.
A = loan from bank A.
B = loan from bank B.
The total loan is $10,000.
Therefore
A + B = 10000                  (4)

Bank A charges 5% interest and bank B charges 6% interest.
Total interest after 1 year is $530, therefore
0.05A + 0.06B = 530       (5)

From (4), obtain
B = 10000 - A                       (6)

Substitute (6) into (5).
0.05A + 0.06(10000 - A) = 530
0.05A + 600 - 0.06A = 530
-0.01A = -70
A = -70/-0.01 = 7000

Answer: Jack borrowed $7,000 from bank A.
3 0
3 years ago
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