sunirmanandhar sunirmanandhar

15-06-2019
Mathematics

contestada

If the following ordered pairs are equal find x and y
a) (3x+4y, 10) and (20, 40-3y)

Respuesta :

marlegby marlegby

15-06-2019

Step one: 3x+4y=20; 10=40-3y

Step two: 3y=40-10, so y=(40-10)/3=10

Step three: 3x+4*10=20

Step four: 3x=20-40=-20, so x=-20/3=-6.66666...~ -6.67

Answer Link

Otras preguntas

solve the equation: -149=x^2-24x

use mental math to find the value of 15/124·230/30÷230/124

On a scale drawing with a scale of 1 cm:3 m, the height of a tree is 5cm. How tall is the actual tree?

How did Herbert Hoover earn the nickname “The Great Humanitarian?” A)He successfully managed the distribution of food to Allied nations throughout World War I.

What energy transfers happen when you cook sausages on a camp fire burning wood?

What are the main characteristics of chivalry?

What are some non-examples of carbohydrates

The ratio of boys to girls in a class is 5 to 6 which is an equivalent. Ratio

What's the reciprocal of 3 over 5?

three times as many children as adults attended a concert on Saturday. An adult's ticket cost $7 and a child's ticket cost $3. The theater collected a total of