idoyle276 idoyle276
  • 24-08-2020
  • Mathematics
contestada

The sum of two numbers is 21.
The second number is six times the first number. Work out the two numbers

Respuesta :

nancyosuji78 nancyosuji78
  • 24-08-2020

Answer:

3 and 18

Step-by-step explanation:

let x be the first number

let 6x be the second number

x + 6x = 21

7x=21

x=21/7

x=3

second number =6x

second number 6x3= 21

Answer Link

Otras preguntas

A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin?
Tesla crafts imitation dream catchers in her spare time. her father constantly encourages her to sell them on ebay. when she finally agrees to sell them, she no
Read this introductory paragraph of a research paper. Which sentence contains the author’s thesis statement? When I was born, it was just my mother and me. My m
What are the different developmental goals? Explain with example.
What strategies should Rita not use in classroom? A) to stay focused, listen only to facts and figures, not broader concepts or ideas. B) warm up for class by
find the interval where the f(x)=4-5x increase and decrease
If 9<4=(3x) and m<8=(x+40) what is the measure of <4? <4 and <8 are vertical
$146800 5.25% 30 yr monthly payment
The faculty_____ which classes will be offered at various times during the day. Which Form of the verb agrees with the subject of this sentence? A. Decide B. De
Constantine I moved the capital of the Roman Empire from Rome to Byzantine because he: A) decided the way to save the empire was to share power between rulers o