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mrs_skeptik [129]
2 years ago
15

Christmas present shhh:)

Mathematics
1 answer:
pishuonlain [190]2 years ago
4 0

Answer:

Aw

Step-by-step explanation:

You might be interested in
The sum of the digits of a two-digit number is 9. If the digits are reversed,the new number is 9 more than the original number.F
hodyreva [135]

Answer:

45

Step-by-step explanation:

Let the original number be xy where y is unit and x is tens hence original number is 10x+y When reversed, the new number is yz hence 10y+x

We know that the original number plus 9 is the reversed number hence

10x+y+9=10y+x

9y-9x=9 which when simplified we obtain that

y-x=1 equation 1

Originally, we are told that the sum of x and y is 9 hence

y+x=9 equation 2

Solving equation 1, it means y=x+1

Substituting the above into equation 2

x+1+x=9

2x=9-1

2x=8

x=8/2=4

Since y=x+1 then y=4+1=5

Therefore, the original number, xy is 45

4 0
3 years ago
Solve each equation. Show all steps and work. your answers to four decimal places.
Virty [35]

Answer:

This equation is incorrect. The equation simplifies to -3=4 which is incorrect.

Step-by-step explanation:

3(-3)=-9. 3(2)=6

-9+6=-3

-3=4 FALSE

5 0
3 years ago
Having trouble with this, pretty sure the answers i have in there are wrong, please help. especially need help with the last que
Xelga [282]

The year in which the two quantities will be equal is 2133.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

Here we have the following data.

y=0.221x-368.264 For men

y=0.168x-255.196 for women

So when we will equate these two equation we will get the year in which two quantities will be same.

0.221x-368.264=0.168x-255.196

0.221x-0.168x=368.264-255.196

0.053x = 1123.068

x= 2133 year

Hence the year in which the two quantities will be equal is 2133.

To know more about equations follow

brainly.com/question/2972832

#SPJ1

4 0
2 years ago
I need help helphelphelp helphelphelp helphelphelp​
Brut [27]

Answer:

234 in^2

Step-by-step explanation:

*look at the pick* 6+60+168=234

7 0
3 years ago
Anand needs to hire a plumber. He's considering a plumber that charges an initial fee of $ 65 $65dollar sign, 65 along with an h
user100 [1]

Answer:

Step-by-step explanation:

Basic Charge = $ 65

Rate per hour = $ 28

Number of hours = H

Rate for H hours = 28 *H = 28H

Equation:

65 + 28H ≤ 250

7 0
3 years ago
Read 2 more answers
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