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jonny [76]
2 years ago
6

melinda will take 15 quizzes this semester. she would like to score a b are better on at least 90% of them. so far. she gotten a

b are better on 6 quizzes. witch inequality can be used to determine how many more quizzes she must score a b are better on
Mathematics
1 answer:
dimaraw [331]2 years ago
7 0

Answer:

i hope this helps, i got  x + 5 ≤ 13 as ur equation

Step-by-step explanation:

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Solve the following system of equations using Gaussian elimination method. If there are no solutions, type "N" for both xx, yy a
Anna11 [10]

Answer:

x=-224/229,

y=296/229,

z=118/229

Step-by-step explanation:

-5x-7y-4z=-6

6x+2y+3z=-2

-x+2y-7z=0...........( multiple with (-5) and sum with 1st equation, mult with 6 and                    sum with 2nd equation)

______________

-x+2y-7z=0

-17y+31z=-6.....(mult with 14)

14y-39z=-2.....(mult with -17) then sum

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-x+2y-7z=0

-229z=-118, so here we have z=118/229.

14y-39*(118/229)=-2, from here we have y=296/229

-x+2*(296/229)-7*(118/229)=0, we get that x=-234/229

In the same way you can do this in the matrix form>>

6 0
3 years ago
How much will the taxi driver earn if he takes one passenger 4.8 miles in another passenger 7.3 miles explain your process
Tcecarenko [31]

Answer:

12.1x+t

Step-by-step explanation:

since we do not get a specific amount we must add 4.8 and 7.3 and substitute the amount the driver earns per mile with x and use t as a variable if they charge something like $5 just to get in before driving

6 0
2 years ago
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mash [69]
The table says that the x value represents the number the years since 1985. To find the number of bald eagle pairs in 1998, we need to calculate x:

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Now plug 13 in for x to find y:

y = 312.5(13) + 1562.5

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6 0
3 years ago
Jim needs to run at least 45 miles this week for training, If he has already run 17 miles, how many miles should he
Neporo4naja [7]

Answer:

7 miles

Step-by-step explanation:

45 - 17 = 28 miles

28 : 4 = 7 miles

8 0
3 years ago
Many poker games start with each player being dealt five cards, called the player's "hand". Remember, there are 52 cards in a st
jek_recluse [69]

Answer:

The number of different possible poker hands is found by counting the number of ways that 5 cards can be selected from 52 cards, where the order is not important. It is a combination, so we use c n r

Step-by-step explanation:

The possible number of the poker hands is probably . C 52 5= 52!/5!x47!= 2598960

5 0
3 years ago
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