ilesnevaeh ilesnevaeh

17-12-2020
Mathematics

contestada

Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers.

Respuesta :

zorro92 zorro92

17-12-2020

3 * x = 4y (from the question)
X+y = 21 (from the question)

3(21-y) = 4y (sub equation 2 in equation 1)

63-3y = 4y

Y=9 (now you sub the 9 instead of y in any of the equations and solve for x)
X=21-y = 21-9 = 12

Hope it helps, the logic is sound just go over the math.

Answer Link

Otras preguntas

Zippy can read 3 books every 5 months and that rate how many books can he read in a year

What pronouns are most likely to be used in second person writing?

Which type of government can make the fastest decisions? Direct democracy Representative democracy Autocracy Oligarchy

The slope of the line whose equation is 3x - 2y = 4 is -2 The slope of the line whose equation is 2x - 1 = 0 is 0 no slope The slope of the line whose equatio

a = a is an example of which algebraic property?

Ron’s class donated d dollars to a local charity. Danny’s class donated 21% more than Ron’s class. Which expression shows the amount Danny’s class donated in te

The law of cosines for ABC can be set up as 52 = 72 + 32 – 2(7)(3)cos(B). What could be true about ABC? Law of cosines: a2 = b2 + c2 – 2bccos(A) a = 5 and c =

. The mission statement of your business should contain all of the following elements except the a. purpose of your business. b. values of your organization.

Calculate the current balance on your checking account if the previous balance was $129.32. You wrote checks for $59.73 and $32.95 and later made a deposit of $

The table represents a function. x -6,7,4,3,-5. y 8,3,-5,-2,12. Which value is an output of the function?