All categories

2 years ago

The difference between two numbers is 9 find the numbers if their sum is 46

Mathematics

2 answers:

Alik [6]2 years ago

6 0

Answer:

x - y = 9

x = 9 + y (equation 1)

Their sum is 46

x + y =46

(9 + y) + y = 46

9 + 2y = 46

2y = 46 - 9

2y = 37

y = 37/2

y = 18.5 ( one number)

second number =

place the value of y in equation 1

x = 9 + 18.5

x = 27.5

The two numbers are 18.5 and 27.5

Step-by-step explanation:

VladimirAG [237]2 years ago

4 0

X + y = 46 x=46-y

x - y= 9

46 - y - y= 9

46 - 2y = 9

Y=37/2

You might be interested in

For what values of the variables are the following expressions defined? 1. 5y+2 2. 18/y 3. 1/x+7 4. 2b/10−b Example: X>7

Serga [27]

Answer:

1. All real numbers

2. All real numbers except y = 0

3. All real numbers except x = -7

4. All real numbers except b = 10

Step-by-step explanation:

For any function to be defined at a particular value, it should not be approaching to a value $\infty$ or it should not give us the $\frac{0}{0}$ (zero by zero) form when the input is given to the function.

The value of function will depend on the denominator.

Now, let us consider the given functions one by one:

1. 5y+2

Here denominator is 1. So, it can not attain a value $\infty$ or $\frac{0}{0}$ (zero by zero) form

So, for all real numbers, the function is defined.

$2.\ \dfrac{18}{y}$

At y = 0, the value

$At\ y =0, \dfrac{18}{y} \rightarrow \infty$

So, the given function is defined for all real numbers except y = 0

$3.\ \dfrac{1}{x+7}$

Let us consider denominator:

x + 7 can be zero at a value x = -7

$At\ x =-7, \dfrac{1}{x+7} \rightarrow \infty$

So, the given function is defined for all real numbers except x = -7

$4.\ \dfrac{2b}{10-b}$

Let us consider denominator:

10-b can be zero at a value b = 10

$At\ b =10, \dfrac{2b}{10-b} \rightarrow \infty$

So, the given function is defined for all real numbers except b = 10

7 0

3 years ago

1+4=5 2+5=12 3+6=21 8+11=?

Mrac [35]

Answer:40

Step-by-step explanation:

21+8=29

29+11=40

6 0

3 years ago

Maria buys 15 apples at the store and places them into bags she puts 5 apples into each bag how many bags does Maria use for all

VMariaS [17]

it's 3 bags 5 times 3 is 15

6 0

2 years ago

Read 2 more answers

Morgan is working two summer jobs, making $19 per hour lifeguarding and making $6 per hour walking dogs. In a given week, she ca

Alexxx [7]

Answer:

w+d≥14

Step-by-step explanation:

Here is the full question

Morgan is working two summer jobs, washing cars and walking dogs. She must work no less than 14 hours altogether between both jobs in a given week. Write an inequality that would represent the possible values for the number of hours washing cars, w, and the number of hours walking dogs, d, that Morgan can work in a given week.

Morgan must not work less than 14 hours. This means that the least amount of hours she can work would be 14 hours. This would be represented by the greater to or equal to sign (≥)

So the time she would spend working = w+d≥14

6 0

3 years ago

Read 2 more answers

If there are 2 girls per 3 boys What is the ratio of girls to Boys

Phantasy [73]

Answer:

2:3

‎‎‎‎‎‎‎‎‎

‎ ‎

‎‎‎‎

‎‎‎‎‎‎‎‎‎

‎ ‎

‎‎‎‎

3 0

2 years ago