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Harman [31]
3 years ago
13

Choose all answers that apply.

Mathematics
1 answer:
Aleksandr [31]3 years ago
3 0

Answer:

It should be C

Step-by-step explanation:

You want to cancel out the x variables

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The sum of two numbers is 50 and their difference is 4 what are the two numbers
Deffense [45]

Answer:

27 and 23

Step-by-step explanation:

We can solve this problem as a system of equations. X is the first number and Y is the second number.

The first equation is x+y = 50 and the second equation is x-y=4

Now we solve the system, using elimination method:

x+y=50

x-y=4

2x = 54

x = 54/2

x = 27

And from any of the equations we can find Y

27 + y = 50

y = 50 - 27

y = 23

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3 years ago
Alexandra has 36 coins
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What is an equation of the line that passes through the point (−3,−1) and is perpendicular to the line x-2y=6?
gogolik [260]

Answer:

y = 2x+5

Step-by-step explanation:

rearrange the equation to make y the sof

y = 1/2x - 3

to find gradient of perpendicular line

1/2 ÷ ( - 1 )

y = -2x + c , the replace the coordinates (-3,-1)

y = 2x + 5

5 0
3 years ago
Question 20 (5 points)
Monica [59]
Well A seems like the most correct answer, the actual purpose of an afterburner is to inject fuel directly into the exhaust stream to increase thrust by as much as 50%. It’s usually used to go supersonic
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Every US. Citizen has a 9 digit social security number. The first 3 digits are a geographic code, the next two digits are determ
Ilia_Sergeevich [38]

Probability of success =

         (number of possibilities that would be considered successful)
divided by
         (total number of different possible outcomes) .

Total number of different possible outcomes =

       total number of different possible values of the last 2 digits

   =  the quantity of numbers from  00  to  99

   =    100 of them .

The number of possibilities that will match your age  =  only 1 .

Probability that the last 2 digits match your age = 1/100  =  0.01  =  1 % .
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3 years ago
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