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igomit [66]
3 years ago
8

Mr. Golv is practicing his jiu-jitsu drill where he does 5 guard passes and 2 kimura arm locks. A guard pass takes G seconds, an

d a kimura arm lock takes K seconds.
Which expressions can we use to describe the number of seconds it takes Mr. Golv to complete his jiu-jitsu drill 7 times?
Mathematics
1 answer:
podryga [215]3 years ago
5 0

Answer:

35g + 14k

Step-by-step explanation:

T = time D = drill

D(5G + 2K) = T

7(5g + 2k) = T

35g + 14k = T

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A dolphin is 1,000 feet below the sea level, it begins ascending at the rate of 20 feet per second. Assume the dolphins continue
Darya [45]
Starts at 1,000feet
Each second is getting 20 feet closer to the surface since is ascending ( going higher)

1,000/20= 100/2=50 second it takes to reach the surface
7 0
3 years ago
In a race between 18 people, how many ways can the top 5 finishers be arranged?
snow_lady [41]

Answer:

Step-by-step explanation:

This is permutation, since order matters.  The formula for us is

₁₈P₅ = \frac{18!}{(18-5)!} which simplifies to

₁₈P₅ = \frac{18*17*16*15*14*13!}{13!}

The factorial of 13 cancels out on the top and bottom leaving you with

₁₈P₅ = 18 × 17 × 16 × 15 × 14

which comes to 1,028,160 ways

Another way to look at it is:  the first 5 people of 18 finish and the others you don't care about.  Once the first place person is first, there are only 4 of the 18 left to finish in second place.  Then there are only 3 left to finish in third place, etc.  So if we use that reasoning, we don't even need to use the formula, we can just say

18 * 17 * 16 * 15 * 14 and those are the first 5 people of 18 to finish.

8 0
3 years ago
What is the slope between (-4,4) and (-6,6)
nalin [4]

\textsf{Let's calculate the slope of the line passing thought the points (-4, 4) and (-6, 6) } \\ \textsf{using the following formula: }\mathsf{m = \frac{\Delta y}{\Delta x}} \textsf{ where m is the slope of the line.}\textsf{So:}

\mathsf{m = \dfrac{\Delta y}{\Delta x} = \dfrac{4 - 6}{-4 - (-6)} = \dfrac{-2}{2} = -1}

\textsf{Hence the slope is -1.}

5 0
3 years ago
In this investigation, you will be solving and interpreting several rate problems. Be sure to show your calculations.
tankabanditka [31]

1. 12 mph, 24 miles

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3.15/1, $1500

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7 0
3 years ago
Read 2 more answers
What is the solution? 2/3(x-7)= -2
koban [17]

Answer:

x =4

Step-by-step explanation:

2/3(x-7)= -2

Multiply each side by 3/2 to clear the fractions

3/2 * 2/3(x-7)= -2 *3/2

x-7 = -3

Add 7 to each side

x-7+7 = -3+7

x =4

3 0
3 years ago
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