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guapka [62]
3 years ago
6

Find the expression you can substitute for x in 5x+y=10 to solve the system below

Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0

First you would need to move the variable causing it to change its sign

5x=10-y

Then divide both sides by 5

X=2-1/5y

Then you are left with your answer:

x=2-1/5y

Hope this helps! :3

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In this subtraction, PR5T and 47Y6 represent 4-digit numbers. What number does PR5T represent?
Svetach [21]

Answer:

PR5T represents <em>6754.</em>

P = 6

R = 7

T = 4

Y = 5

Step-by-step explanation:

Let us try to understand the subtraction starting from the unit's digit.

   P R 5 T

-  4 7 Y 6

-----------------

    1 9 9 8

To get 8, 6 should be subtracted from 14

14 - 6 = 8

So, T should be equal unit digit of 14 <em>i.e.</em> T = 4 and 1 should be carried over from the ten's digit of PR5T.

Now, let us move to ten's digit:

   P R 5 4

-  4 7 Y 6

-----------------

    1 9 9 8

To get 9, 6 should be subtracted from 15. But 1 is already carried to unit's place So, we have actually 14 here

14 - Y = 9

So, Y = 5

Moving to hundred's place:

R - carry - 7 = 9

Carry is 1, so R = unit's place of 9 + 8 i.e. R = 7

Moving to thousand's place:

P - carry - 4 = 1

Here carry is 1

So, P = 1 + 4 + 1 = 6

So, the number PR5T is <em>6754.</em>

5 0
3 years ago
The sum of 2 times a number and 3 is 6
barxatty [35]
Is there a question or is this it ?
it basically answers itself because 2 times 3 is 6
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Nine people are evenly sharing 13 burgers.<br> How many burgers should each person get?
serg [7]

Answer:13

Step-by-step explanation:

13 burger each person should get 13

4 0
3 years ago
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Is 3.142857 a rational number
gregori [183]
If you're talking about just the decimal, then yes it is.
If you're talking about 22/7, then it still is.
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Answer:

b

i did this before xD

6 0
3 years ago
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