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

What is 2 2/7 + 4 1/2

-83 = -16 + x, .....................................................

Anyone know this one? please help! thank you

The initial freshman class at a college is 10% smaller 1than last year's class. But then during the first week of classes, 20 morestudents enroll. If there wer

Linda and Richard are married and file a joint return for 2019. During the year, Linda, who works as an accountant for a national airline, used $2,100 worth of

If Stan gathered x tomatoes everyday for 3 days, how many tomatoes did he gather

2. What is a genetic disorder?3. What is a congenital disorder?4. What is an example of a non-genetic conge

True or False: The Nazi army was depleted by 500,000 by 1943 because of Hitler’s attack on the Soviet Union

The trial balance of Wikki Cleaners at December 31, 2012, the end of the current fiscal year, is as follows:

Which point has coordinates (-3,-5) Y U W Z