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2 years ago

A

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

7 0

Step-by-step explanation:

1550 - 395 = 1155

1155 / 82.5 = 14

Answer should therefore be 14 weeks.

Not my usual way of doing this sort of question but I'm interested to see if it's right. Alternatively you can subtract $82.50 from $1550 until/before you reach $395. Do not go below $395 though.

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timama [110]

Answer:

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Step-by-step explanation:

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2 years ago

Determine the average speed of the current in a river if a boat moves at 20 miles/hour in still water and takes 3 hours to trave

Taya2010 [7]

The speed of the current in a river is 6 miles per hour

Solution:

Given that,

Speed of boat in still water = 20 miles per hour

Time taken = 3 hours

Distance downstream = 78 miles

To find: Speed of current

If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then:

Speed downstream = (u + v) km/hr

Speed upstream = (u - v) km/hr

Therefore, speed downstream is given as:

$\text{ speed downstream } = \frac{distance}{time} = \frac{78}{3}\\\\\text{ speed downstream } = 26 \text{ miles per hour }$

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3 years ago

Convert 32 kilometers per hour to miles per day. (3.28 feet 1 meter)

bonufazy [111]

Answer:

477.09 mi/da

Step-by-step explanation:

If student must use conversion given, 3.28ft = 1m, then the following works:

32km/hr = ______mi/da 1 day = 24 hrs, 1m=3.28ft, 1km=1000m,1mi=5280ft

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If student can use 1km = 0.62mi, some steps can be skipped.

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3 years ago

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Molodets [167]

Answer:

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Step-by-step explanation:

Given expression:

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Following the order of operations, carry out the calculations inside the parentheses first.

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$\sf \implies 3^{7-5}$

$\sf \implies 3^2$

Learn more about exponent rules here:

brainly.com/question/27959936

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Answer:

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Step-by-step explanation:

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