DinoSlayer99 DinoSlayer99
  • 17-12-2015
  • Mathematics
contestada

The difference of two numbers.(a,b) is 21. The difference of 5 times a and 2 times b is 18. What are the values of a,b?

Respuesta :

dylan16 dylan16
  • 17-12-2015
the equation is b-a= 21;
2b-5a = 18
a=8 and b= 29
therefore 29-8= 21
2 (29) -5 (8) = 18
58-40=18
Answer Link

Otras preguntas

The circumference of a circular field is 182.12 yards. What is the radius of the field
werdfwerwrfwfsddsfref
Rebecca supplies costumes to a number of theater companies and recently lent out a number of different hats. turbans 6 berets 3 mortarboards 3 top hats 2 What i
what does noncollinear
Find the value of x DUE SUNDAY I NEED ASAP
Maria said the expression −4n+3+9n−4 is equivalent to 4n. What error did Maria likely​ make? What error did Maria likely​ make?
explain how digestive organs depend upon each other to provide nutrients to the body​
¿Cuál es la respuesta correcta de esta ecuación diferencial con su justificación?xydx+(x^2-y^2)dy=0​
POSSIBLEPOINTS TU Find the length of the unknown side marked with a variable. Show all work. AGHI ~ AKLJ 12 L 9 20 K H X
the distance between a boy and a hill is 250 meters. if the boy shouts after how long will the echo be heard numerical problem​