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3 years ago

13

DEF=XYZ

1 answer:

PIT_PIT [208]3 years ago

4 0

All of them a b c d but not e because e is wrong

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Let x and y represent the tens digit and ones digit of a two digit number, respectively. The sum of the digirs of a two digit nu

gayaneshka [121]

Answer:

The Original Number is 36

Step-by-step explanation:

Given:

y is the number in units place

x is the number in tens place

Original Number = $10x+y$

$x+y=9$ is equation 1

Now after interchanging the digits

New number = $10y+x$

New Number = 27 + Original Number

Substituting Valus in above equation we get.

$10y+x=27+10x+y\\10y-y+x-10x=27\\9y-9x=27\\9(y-x)=27\\y-x=\frac{27}{9}\\$

$y-x=3$ let this be equation 2

Adding equation 1 and 2 we get

$(x+y=9)+(y-x=3)\\2y=12\\y=\frac{12}{2}\\y= 6\\$

Substituting value of y in equation 1 we get

$x+y=9\\x+6=9\\x=9-6\\x=3$

x=3 and y=6

Original Number = $10x+y=10\times3+6=30+6=36$

4 0

3 years ago

Solve <br><br> 10/r > 1; r = 5

KiRa [710]

Answer:

10/5 = 2

so its 2>1

Step-by-step explanation:

6 0

3 years ago

If I have 5 and a half gallons of water and each half gallon needs a pack of salt. how many salt packs do I need?

IRISSAK [1]

Answer:

11

Step-by-step explanation:

5 and a half gallons is 11 half gallons

since 1 half gallon needs 1 salt pckt

11 half gallons will need 11 packets

7 0

3 years ago

Read 2 more answers

What is the surface area of a piece of pipe that is open at both ends, has a radius of 6 inches, and a height of 18 inches? (Use

Ratling [72]

i hope this helps you

7 0

3 years ago

How many gallons do you need for every 150 miles

Vaselesa [24]

Answer:

you would use 1.65 gallons every 150 miles

Step-by-step explanation:

6 0

4 years ago