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Dmitrij [34]
2 years ago
8

What is an equation of the line that passes through the point (3, -8) and has a slope -2?​

Mathematics
1 answer:
Nataliya [291]2 years ago
7 0

Answer:

y = -2x - 8

Step-by-step explanation:

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every prime number greater than 10 has a digit in the ones place that is included in which set of numbers below?
stich3 [128]
So we can start with the full of possibilities and eliminate them one by one.

The full set is {0,1,2,3,4,5,6,7,8,9}.

Now we know that any prime greater than 2 is odd as otherwise it would have 2 as a factor, so we can eliminate all of these digits that would be an even number, leaving:

{1,3,5,7,9}

We also know that any prime greater than 5 cannot be a multiple of 5 and that all numbers with 5 in the digits are a multiple of 5, so we can eliminate 5.

{1,3,7,9}

We know that 11,13,17 and 19 are all primes, so we cannot eliminate any more of these, leaving the set:

{1,3,7,9} as our answer.
8 0
3 years ago
Kim's furniture store is offering a 30% discount on all its armchairs. Using a proportion, find the discount of the price of an
Airida [17]
79.8 is the discount of the price of an armchair that originally cost $266.00......... because 266.00÷30%=79.8
3 0
2 years ago
Read 2 more answers
Which expression is equivalent to 7
Nutka1998 [239]

Answer:

ok what teacher gave you this

Step-by-step explanation:

8 0
3 years ago
Solve each system of equation using any method.<br> 7 x + y = 5 2x - y = 4
nexus9112 [7]

Answer:

x = 1

y= -2

Step-by-step explanation:

to solve this system of equation , simultaneously using the substitution method

we say let

7 x + y = 5 ............................................. equation 1

2x - y = 4 ................................................... equation 2

from equation 2

2x - y = 4 ................................................... equation 2

2x - 4 = y

y = 2x -4.......................................................... equation 3

put the value of the y = 2x -4 into equation 1

7 x + y = 5 ............................................. equation 1

7x + 2x - 4 = 5

9x-4 = 5

9x = 5 + 4

9x = 9

divide both sides by the coefficient of x which is 9

9x/9 = 9/9

x = 1

substitute the value of x = 1 into equation 3

y = 2x -4.......................................................... equation 3

y = 2(1) -4

y = 2 - 4

y = -2

to check if you are correct put the value of x and y into any of the equations and you will see that the left hand side will be equal to the right hand side.

2x - y = 4 ................................................... equation 2

2(1) -(-2) = 4

2 + 2 = 4

4=4................................... proved

7 0
3 years ago
A camera costs 115 Canadian Dollars. If each Canadian dollar is worth 0.952 U.S Dollars, how much would the camera cost in U.S D
PIT_PIT [208]
This is truly a simple, one-step equation if looked at in the right angle.

You're going to want to multiply 115 by .952:

       115
<u>   x .952
</u>       230
+   6050
<u>+ 93500
</u>  109.48

$109.48 is your final answer.
6 0
3 years ago
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