alexcbrera89 alexcbrera89

17-06-2021
Mathematics

contestada

The sum of three numbers is 90. The third number is 10 less than the first. The second number is 3 times the third. What are the numbers?

Respuesta :

reinhard10158 reinhard10158

21-06-2021

Answer:

16

26

48

Step-by-step explanation:

x + y + z = 90

z = x - 10 => x = z + 10

y = 3z

=>

(z+10) + 3z + z = 90

5z + 10 = 90

5z = 80

z = 16

x = z + 10 = 16 + 10 = 26

y = 3z = 3×16 = 48

Answer Link

Otras preguntas

Solution for 3/8 + 16/24 =

(2p + 3)(p2 – 4p – 7) expand and simplify

Factor the following trinomial, if possible 4x^2 + 4x - 3

Which best states George Washington’s connection to the 1787 Constitutional Convention?

Which of the following statements is false? a. The product of two rational numbers is always irrational. b. The sum of a rational number and an irrational numbe

How can creation myths influence how the history of the world or a society is viewed?

How did the advances in steel production and oil refining affect US industry History

Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long. a. 81 b. 108 c. 243

Solve the equation by completing the square.Round to the nearest hundredth if necessary. X^2–x–7=0 a. 2.6, 2.69 b. –6.75,7.75 c. 3.19, –2.19 d. 3.05, –2.05

What does it mean to be “in the red?” a. You have more credits than debits. b. You have more debits than credits. c. You cannot find your financial records.