onaloubenedict onaloubenedict

10-08-2021
Mathematics

contestada

Twice a certain number is subtracted from 9 times the number. The result is 21. Find the number.

Respuesta :

rococo908 rococo908

10-08-2021

Answer:

3

Step-by-step explanation:

Let x represent the number.

Create an equation to represent the situation, and solve for x:

9x - 2x = 21

7x = 21

x = 3

So, the number is 3.

Answer Link

Otras preguntas

The figure shows the movement of a pedestrian as she walks from point B to point E. Write a formula for function d(t) for each section: BC, CD, and DE.

Decrease £180 by 25%

thế giới động vật đa dạng, phong phú do yếu tố nào

Consider the "Macro" part of Virtual lab to determine if each of the following statements is True or False * Salt conducts electricity true false Sucrose conduc

Write a 100-word Summary about online shopping include : 1-Title. 2- Topic sentence (to introduce the article).

Is (x – 3) a factor of the polynomial: 2x8 – 5x? - 8x + 15 ?

Find each unit rate. Round to the nearest hundredth if necessary. 144 miles on 4.5 gallons

0.04 with 4 repeating as a fraction. Not the 04 repeating just the 4 is repeating. What is the answer???

Hshshjsjsjsjsjsjjsjs

Write the plural form of each sentence. Make the necessary changes. Glasm 1. A moose is somewhat like a large deer. 2. This company is a subsidiary of MSW Elect