emma5710
emma5710 emma5710
  • 04-08-2018
  • Mathematics
contestada

Plzzz Help with number 139 don’t understand

Plzzz Help with number 139 dont understand class=

Respuesta :

Аноним Аноним
  • 04-08-2018

2a + 2s = 32, 6a + 7s = 106

Solve for a in the first equation.

2a = 32 - 2s

a = 16 - s

Substitute a into the second equation.

6(16 - s) + 7s = 106

96 - 6s + 7s = 106

96 + s = 106

s = 10

Substitute s into the first equation.

2a + 2(10) = 32

2a + 20 = 32

2a = 12

a = 6

a = 6, s = 10

Answer Link

Otras preguntas

Solve the equation x=x+3
Is 0.127 a rational number
Write equation in function form 6-y=17x
Who was Malinche and what other name was she called?
What is the series equivalent of two 1000 W resistors in series?
how to Express each decimal as a fraction or a mixed number in a simplest form ? I need help with -0.14
How do three planes intersect at one point?
Among other things, the romantics valued: a. individualism, the belief in the uniqueness of each person. b. socialism, a system in which society owns and contr
Explain how you would use a number line to find 6+(-8)
the 42 foot tree casts a shadow of 63 feet. how long is a shadow of a 5 foot girl who is standing near it