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

Solve each compound Inequality. 42. -2 ≤ d + 1/2 < 4 1/2 44. 2t ≤ -4 or 7t ≥ 49 46. -1 ≤ a - 3 ≤ 2 48. A town's high temperature for a given month is 88 degr

If a=3 and b=5, what is the value of 3a + b to the power of 2?

What is party-as-organization?

9 to the x-5 power=27

To calculate the area of the front surface of a box,you (a) add the length to the height (b) add twice the length to twice the height ( c) multiply the length b

How do we solve that problem 1/4(x-3)=3x-11/4x-3

The Middle Colonies were most known for its what of different religions?

select difference of (8x2-3x3) - (2x2-5x3)

The atomic number of an atom identifies the number of protons in its nucleus. If the overall charge on the atom is neutral, what must the atomic number also ide

what is 16,700,000,000,000,000 estimated as the product of a single digit and a power of 10