Question

Find 2 numbers whose sum is 47 and whose subtraction is 13

282

likes
1412 views

Answer to a math question Find 2 numbers whose sum is 47 and whose subtraction is 13

Expert avatar
Fred
4.4
118 Answers
The sum of the two numbers is 47: (x + y = 47) ---(Equation 1) The subtraction of the two numbers is 13: (x - y = 13) ---(Equation 2) To find the values of (x) and (y), we can solve this system of equations. We can solve this system by adding Equation 1 and Equation 2: ((x + y) + (x - y) = 47 + 13) (2x = 60) (x = 30) Now, substitute the value of (x) into Equation 1 to solve for (y): (30 + y = 47) (y = 47 - 30) (y = 17) Therefore, the two numbers are 30 and 17, as their sum is 47 and their subtraction is 13.

Frequently asked questions (FAQs)
What is the solution to the inequality 4x + 5 > 15?
+
What is the radian measure of an angle that subtends an arc of length 8 units in a circle with radius 2 units?
+
What is the measure of each angle formed by an angle bisector if one of the angles measures 80°?
+
New questions in Mathematics
a ferry travels 1/6 of the distance between two ports in 3/7 hour. The ferry travels at a constant rate. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour.
How do you think the company has increased or decreased its income?
The data set (75, 85, 58, 72, 70, 75) is a random sample from the normal distribution No(µ, σ). Determine a 95% two-sided confidence interval for the mean µ .
-3x 2y = -6; -5x 10y = 30
To celebrate the five-year anniversary of a consultancy specializing in information technology, the administrator decided to draw 3 different qualification courses among its 10 employees. Considering that the same employee cannot be drawn more than once, the total number of different ways of drawing among employees is:
A National Solidarity Bond offers A 5 year bond offering a gross return of 15% Calculate the AER for this investment. (Give your answer to two decimal places, no need for the percent or € sign in your answer)
There are 162 students enrolled in the basic mathematics course. If the number of women is 8 times the number of men, how many women are there in the basic mathematics course?
solve for x 50x+ 120 (176-x)= 17340
Lim x → 0 (2x ^ 3 - 10x ^ 7) / 5 * x ^ 3 - 4x )=2
If A and B are any events, the property that is not always true is: a) 0 ≤ 𝑃(𝐴 ∩ 𝐵) ≤ 1 b) 𝑃(Ω) = 1 c) 𝑃(𝐵) = 1 − 𝑃(𝐵𝑐) d) 𝑃(∅) = 0 e) 𝑃(𝐴 ∪ 𝐵) = 𝑃(𝐴) + 𝑃(𝐵)
If X1 and X2 are independent standard normal variables, find P(X1^2 + X2^2 > 2.41)
There are 3 orchards, a, b and c. Orchard a has 60 fewer trees than orchard b orchard c has 3 times as many trees as orchard b. If the three orchards have 430 trees altogether, how many trees does orchard c have?
Find each coefficient described. Coefficient of u^2 in expansion of (u - 3)^3
Calculate the difference between 407 and 27
48 kg of 30% sulfuric acid in a mixture of 10% and 40% sulfuric acid arose. How many kilograms were each of the original solutions?
a) Statistics scores are normally distributed with the mean of 75 and standard deviation of 7. What is the probability that a student scores between 80 and 88
A membership to the gym cost $25 per person in 1995. The membership cost has increased by an average $6 per person for each year since 1995. Write a linear equation for the cost of a gym membership for one person since 1995. What is the cost of a gym membership in 2009?
A group of 17 people spent 9 days on vacation and spent R$776.34 on barbecue meat and the bill needs to be divided as follows: 6 people stayed for 9 days, 7 people stayed for 4 days, and 2 people stayed for 5 days and 2 people stayed 3 days, how much does each group have to pay for the days they stayed?
Select a variable and collect at least 50 data values. For example, you may ask the students in the college how many hours they study per week or how old they are, etc. a. Explain what your target population was. b. State how the sample was selected. c. Summarise the data by using a frequency table. d. Calculate all the descriptive measures for the data and describe the data set using the measures. e. Present the data in an appropriate way. f. Write a paragraph summarizing the data.
Write decimal as the fraction 81/125 simplified