marissaboyles04 marissaboyles04

12-01-2020
Mathematics

contestada

The sum of two numbers is 20. The difference of the two numbers is twice the smaller number. What are the two numbers?

Respuesta :

13-01-2020

Answer: x = 15 ; y = 5

Step-by-step explanation:

x + y = 20

x - y = 2*y

x = 20 - y

20 - y - y = 2*y

20 - 2*y = 2*y

- 2*y - 2*y = -20

- 4*y = -20

y = -20 / -4

y = 5

x + y = 20

x + 5 = 20

x = 20 - 5

x = 15

Answer Link

Otras preguntas

How do you write seven hundred twelve thousandths in standard and expanded form

How many times larger is the value of 130000 than 130

1 red bean for every 3 blue beans. Decimal equivalent of percent of red beans?

At a warehouse, boxes of merchandise are placed on shelves in stacks that are 7 boxes high. If each box is 4 3/5 inches in height, how tall is the stack of boxe

last one of the front page .that i need help on plz

Which term describes a physical activity that includes both cardio and strength-training exercises

Halp em look th the picher

A total of 411 tickets were sold for the school play . They were either adult tickets or student tickets. The number of student tickets sold were two times the

what components of physical activity are skill related

When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4 cups = 1 quart). How many kg of coffee are required to pr