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n200080 [17]
3 years ago
8

Rebecca ran 21 miles in 5 hours. If she ran at a constant speed, how many miles did she run in 2 hours? 8.4 miles 42 miles 4.2 m

iles 1.2 miles
Mathematics
1 answer:
Sholpan [36]3 years ago
6 0

Answer: 8.4 miles

Step-by-step explanation:

d = rt

Solve for her rate

21 = 5r

r = 21/5

r = 4.2

Solve for if the time is 2 hours and rate (solved previously) is 4.2

d = 4.2*2

d = 8.4

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Evaluate 2.43+51.62+124.77
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3 0
3 years ago
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3 years ago
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Eva8 [605]
I realise this is quite late but in case you still wanted the answer, the width is 3m.

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4 0
3 years ago
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rosijanka [135]

Answer:

The balcony seat costs $9,  the orchestra seat costs $9 + $6 = $15.

Step-by-step explanation:

Let x is the cost/price of one balcony seat, in dollars.

Then the cost of one orchestra seat is (x+6) dollars, according to the condtion.

The total cost of tickets is  

250x + 400*(x+6) = 8250.

Simplify it step by step.

250x + 400x + 2400 = 8250,

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3 0
3 years ago
Read 2 more answers
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