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trasher [3.6K]
3 years ago
11

when you reverse the digits in a certain two-diget number you increase it value by 27. What is the number if the sum of its digi

ts is 5
Mathematics
2 answers:
BaLLatris [955]3 years ago
4 0
14 or 41

41 - 14 = 37

4+1 = 5
Fynjy0 [20]3 years ago
3 0
The number is = 10x+y
if reverse the digits, the number is: 10y+x
The sum fo its digits is =  x+y=5
I suggest this system of equations:
(10y+x)-(10x+y)=27    ⇒9y-9x=27
x+y=5
We can solve this system of equations by equaliztion method
x=5-y

9y-9(5-y)=27
9y-45+9y=27
18y=27+45
18y=72
y=72/18
y=4

x=5-y
x=5-4=1

The number is: 10x+y=10(1)+4=14

Answer: the number is 14
You might be interested in
Solve: 3x − 8 = 8x − 33
trasher [3.6K]
3x-8 = 8x-33

3x-8x = -33+8
-5x = -25
x = -25/-5
x = 5
4 0
4 years ago
(1) 4p²q : 10pq²
tiny-mole [99]

Answer: (1) 2p: 5q.

(2) 3:10.

(3) 5:6.

Step-by-step explanation:

To find : Ratio

(1) 4p²q : 10pq²

=\dfrac{4p^2q}{10pq^2}\\\\=\dfrac{2p^{2-1}}{5q^{2-1}}\\\\=\dfrac{2p}{5q}

i.e. Simplified ratio of 4p²q : 10pq²  is 2p: 5q.

(2) 9 months : 2½ years

1 year = 12 months

2\dfrac{1}{2}\text{years}=\dfrac{5}{2}\text{years}\\\\=\dfrac{5}{2}\times12=30\text{ months}

Now, 9 months : 2½ years = \dfrac{9\text{ months}}{30\text{ months}}=\dfrac{3}{10}

Hence, Simplified ratio of 9 months : 2½ years is 3:10.

(3) 5 m : 600 cm

1 m = 100 cm

So, 5m = 500 cm

Now, 5 m : 600 cm = \dfrac{500\ cm}{600\ cm}=\dfrac{5}{6}

Hence, Simplified ratio of  5 m : 600 cm  is 5:6.

7 0
3 years ago
Ryan is writing a composition for homework. He decides to keep track of the number of
lakkis [162]

Answer:

Your answer will be 1.5

Step-by-step explanation:

I used my calculator to find out, your welcome:)

3 0
3 years ago
Read 2 more answers
13/20 , 11/15 , 5/8, 7/12 from least to greatest
Sveta_85 [38]

Answer:

Least 2 Greatest:

7/12,   5/8,  13/20,  11/15

Step-by-step explanation:

Googled it

Plz say thxs and rate me!

Yours Truly.

5 0
3 years ago
Pls I need help someone pls help me
marta [7]
I think it’s 7.14 or atleast that’s what I got
7 0
3 years ago
Read 2 more answers
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