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ozzi
4 years ago
9

A small motor on a fishing boat can move the boat at a rate of 7 mph in calm water. Traveling with the current, the boat can tra

vel 18 mi in the same amount of time it takes to travel 10 mi against the current. Find the rate of the current
Mathematics
1 answer:
kompoz [17]4 years ago
6 0

Answer:

Let x represent the rate of the current

d = r*t Or t = d/r

%2812mi%2F%286mph-x%29%29+=+%2824mi%2F%286mph%2Bx%29%29

cross multiply

24*(6-x) =12*(6+x)

12*6 = 36x

2mph = x, the rate of the current

checking our answer

12mi/4mph = 24mi/8mph = 3 hr

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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General Formulas and Concepts:

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Step-by-step explanation:

<u>Step 1: Define equation</u>

9(z + 8) = -9z - 72

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 9:                              9x + 72 = -9z - 72
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3 years ago
Pls answer fast first to answer correct is the gets brainliest
11Alexandr11 [23.1K]

Answer:

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Step-by-step explanation:

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Then we use exponent rule which states that when we are dividing exponents of the same base, we have to subtract them. We see that the exponents are 1/3 and 1/4. So we use basic fractional division, here's the subtraction:

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= 1/12 (we subtracted the denominators and multiplied the denominators)

Now that we have subtracted the exponents, we can write the answer as 6^1/12

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