21-10-2021
Mathematics

contestada

This question in algebraic expression and number form : the difference between 20 and x

Respuesta :

yzaoriginal1 yzaoriginal1

21-10-2021

Answer: Let the numbers be x and y.

x+y = 20 …(1)

x-y = 10 …(2)

Add (1) and (2)

2x = 30, or x = 15, and so y = 5.

The product of the two numbers = xy = 15*5 = 75.

Step-by-step explanation:

Answer Link

Otras preguntas

Tell what you would compute in npr or nCr form, whichever is appropriate to the situation (.e., does order matter or not?), but do not compute it. For example,

Let X0, 81, ..., Xn be n+1 distinct points with given values f(xo), f(x1)...., f(xn). Let Pn be the Lagrange interpolating polynomial defined using all these po

(a) Discuss the differences between inductive research and deductive research. (15 marks) Use an example to illustrate: (b) Why case studies are an inductive re

A curve C in space is described by the vector-valued function: p(t) = (t² - 1, 2t, 2t² + 2) Find a unit vector with a positive x-component that is orthogonal to

Using the rules of 30-60-90, determine the requested length from the image.

Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.) f(x)= { -3x-3, x < -1 { x^2+2x-1, x >= -1 (a) f(-4) (b) f(-1) (c) f(1)

Q1. why was iPhone so successful as a new product? Q2. how has Apple continued to innovate with newer iphone? mention some product or service feature and discus

Juan runs in place for 2 5/6 minutes on Monday. He runs in place for 1 1/2 times as long on Tuesday. Juan draws this model to represent the number of minutes

What is the angular position in radians of the minute hand of a clock at 1:15? What is the angular position in radians of the minute hand of a clock at 2:55?

Using FDI-Based Explanations, discuss how MNEs Gain and Sustain International Competitive Advantage. (10 Marks) (ii) How relevant are the following Global Susta