jerichahowell3 jerichahowell3
  • 04-09-2019
  • Mathematics
contestada

The sum of three numbers is 61 the second number is 5 times the first while the third is 2 less than the first find the numbers

Respuesta :

Dlalex2316 Dlalex2316
  • 04-09-2019

Answer:

9 + 45 + 7 = 61

Step-by-step explanation:

a+b+c = 61...eqn 1

b = 5a...eqn 2

c = a - 2...eqn 3

subst for b and c in eqn 1...

=> a+5a+a-2 = 61

=> 7a = 63

=> a = 9

subst for a in eqn 2...

=> b = 5×9 = 45

subst for a in eqn 3...

=> c = 9-2 = 7

Answer Link

Otras preguntas

Angie read 3 books in 5 days, and each book contained 335 pages. If Angie read the same number of pages each day, how many pages did she read per day? 751,0052
what is 0.123 rounded to the nearest tenth
How does -1 to the 6th power equal -1? shouldn't it be positive?
What's the rationale for adopting the US dollar as "legal tender" in Argentina?
the sum of two numbers is 9. if one number is subtracted from the other, the result is 3. find the numbers
chris has a bag of sweets. there are more than 20 sweets in a bag. he shares his sweets equally between six people. Chris says "the number of sweets in the pa
What is the degree of comparison of the underlined modifier? Suzanne is a gifted ballet dancer. A. superlative B. positive C. comparative
Which of the following is a factor that contributed to the formation of the Farmers' Alliance? low crop prices restrictive tariffs government regulations lack o
Which biome is characterized by low annual rainfall, less than 26 centimeters (about 10-11 inches) per year?
What is a well-mixed mixture that contains a solvent and at least one solute