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ELEN [110]
3 years ago
7

A student was finding the solutions to the equation 1 -

Mathematics
1 answer:
Kamila [148]3 years ago
7 0

Answer:

Step-by-step explanation:1-2-3=0

1-4=0

1=0+4

1=4

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Given that 4x – 5y = 21
GrogVix [38]
Those who confess with their mouth Jesus is Lord and truly believe in their heart God rose him from the dead shall be saved turn away from ur sins ! sorry i couldn’t help
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3 years ago
Solve the equation 7 + 3m = 28
balandron [24]
The answer is D. M=7 



===================
explanation 

7+3(7)=28

7+21=28

28=28

making the D.M=7 as true.
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3 years ago
Let P (n) be the statement that 12 + 22 + · · · + n2 = n(n + 1)(2n + 1)/6 for the positive integer n. a) What is the statement P
andriy [413]

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

4 0
3 years ago
Please help me solve this!!!!!
gulaghasi [49]

Answer

Burger meal = $8 and Hot dog meal = $6

Step-by-step explanation:

Let's use "x" to represent burger meals and "y" to represent hot dog meals.

Garcia family:

3x + 4y = $48

Baker family:

6x + 2y = $60

We have to first compare both families' and then eliminate one of our common variables, either the "x" or "y".

3x + 4y = $48

6x + 2y = $60

Let's eliminate "x". To do this we can multiply "3x" by "-2" to get "-6x". This will cancel out "6x":

-2 (3x + 4y = $48) ...our new equation would be....

-6x - 8y = -$96

Now to add our two families' equations together...

-6x - 8y = -$96

+

6x + 2y = $60

=

- 6y = -$36

Divide both sides by "-6" to get "y" by itself.

y = $6

We now know the value of "y" <em>or </em>one hot dog meal. Next, we want to solve for "x", our variable for the hamburger meal... We will plug in our y value to help us...

3x + 4(6) = $48

3x + 24 = $48

We want to get our x by itself. First, we can subtract 24 from each side.

3x = $24

Then we will divided both sides by 3 to get x alone.

x = $8

To check our work we can plug in our values for both "x" and "y" to see if they add up to $48 and $60:

3(8) + 4(6) = $48

24 + 24 = $48

and...

6(8) + 2(6) = $60

48 + 12 = $60

8 0
4 years ago
Select all equations that could be used to find the measure of angle C, using the fact that the sum of all the angles in a trian
Semmy [17]
C = 180 - A - B

And

C = 180 - (A+B)

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Brainliest answer :)) ?
4 0
4 years ago
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