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iris [78.8K]
3 years ago
7

Help please! ASAP!!!!

Mathematics
1 answer:
zhuklara [117]3 years ago
5 0

Nami is correct since if a movie is PG-13 you have to be at least 13 yrs old or higher to enter. The sign is saying that you have to be 13 yrs old or younger to enter which is incorrect because a 5 yr old shouldn't be allowed to watch a PG-13 film for adults. The correct sign would be x≥13

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The sum of the digits of a two-digit number is 12. The number formed by reversing the digits is 54 more than the original number
andreyandreev [35.5K]

Answer:

39

Step-by-step explanation:

let the 2 digit number be ab = 10a + b ( considering place value )

The reversed  2 digit number is ba = 10b + a

The sum of the 2 digit number is

a + b = 12 ( subtract b from both sides )

a = 12 - b → (1)

Expressing as an equation

ba = ab + 54 , that is

10b + a = 10a + b + 54

Substitute a = 12 - b into the equation

10b + 12 - b = 10(12 - b) + b + 54 , simplify both sides

9b + 12 = 120 - 10b + b + 54

9b + 12 = - 9b + 174 ( add 9b to both sides )

18b + 12 = 174 ( subtract 12 from both sides )

18b = 162 ( divide both sides by 18 )

b = 9

Substitute b = 9 into (1)

a = 12 - 9 = 3

Thus

the original 2 digit number = ab = 39

The reversed 2 digit number = ba = 93

which is 54 more than the original number

7 0
3 years ago
PLEASE HELP ME!!! The formula F =95C + 32 expresses Fahrenheit temperature in terms of Celsius temperature. Find the Celsius tem
Jet001 [13]

Answer:

4C

Step-by-step explanation:

41= x+32

x= 41-32

x = 4C

6 0
3 years ago
Simplify (x - y + 1) - (x + y - 1)
andrey2020 [161]
First, distribute the minus sign across the second set. So you have:

x - y + 1 - x - y + 1

Now, we combine like terms:
x-x=0
-y-y=-2y
1+1=2

So we have -2y+2

Hope that helps.
5 0
3 years ago
How do u graph slope
Makovka662 [10]
You graph slope by going up and over based on what number you have as the slope. The starting point is the y intercept
6 0
3 years ago
Please help me please​
baherus [9]

Answer:

The answer is C

4 0
3 years ago
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