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USPshnik [31]
3 years ago
5

In your own words,define a system of equations

Mathematics
1 answer:
lesya692 [45]3 years ago
8 0
First you solve for X then substitute the number you got for X and then solve for Y.
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2. Peter, Jeff, and John, each perform subtraction incorrectly as follows:
grandymaker [24]

Answer:

peter: subtraction mistake at unit place . wrote 6 in place of 9

Jeff: subtraction mistake at tens place: wrote 4 while the correct digit is 3

peter: He has written 3 at unit place while correct digit is 2

John: he has carried 1 twice from 5 at hundred place and then subtracted 2 from it which gives value 1 at hundred place.

Step-by-step explanation:

we have to subtract 503 from 269

      9

  4 10 13

    503

   -269

    ____

     234

Solution

since 3 is less than 9 , we take a carry from 0 but 0 cannot be carries so we take 1 carry from 5\

thus

5 becomes 4, 0 becomes 10,

now 10 can be give  1 carry to 3 at unit place, so 3 becomes 13

now 9 is subtracted from 13

13-4 = 9

this is the mistake of Peter

he has written 6 at unit place which should be

peter: subtraction mistake at unit place . wrote 6 in place of 9

____________________________________________________

since , 1 is carried from 10 at tens place, 9 is left at tens place

so we know subtract 6 from 9 at tens place

9-6 = 3

Here mistake is done by Jeff

Jeff: subtraction mistake at tens place: wrote 4 while the correct digit is 3

________________________________________________

at hundred place,

one is taken from 5 , hence 4 is left at hundred place

we have to subtract 2 from 4

4-2 = 2

hence,

Here, mistake done by both both Peter and jeff

peter: He has written 3 at unit place while correct digit is 2

John: he has carried 1 twice from 5 at hundred place and then subtracted 2 from it which gives value 1 at hundred place.

4 0
3 years ago
A coffee shop sold 72 large cups of coffee on Monday. Each large cup of coffee cost $4.35.
frez [133]

Answer:

314 large cups

Step-by-step explanation:

72x4.35=313.2

6 0
3 years ago
Read 2 more answers
A chemical company is considering two processes
zhannawk [14.2K]

Answer: $166.430 per year

Step-by-step explanation:

0= -900000+AOC(P/A, 40%,3)

0= -900000+AOC(1.5889)

result we get

AOC= $566430

Require reduction = 566430-400000

result we get

$166.430 per year

8 0
3 years ago
Two questions please help
3241004551 [841]
Well just think 747 divided by 9
3 0
3 years ago
. If A and B are two sets and A∪ B= A ∩ B, then
SCORPION-xisa [38]

Answer:

A=B maybe ...

what is that symbols of a and b

3 0
2 years ago
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