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

Any one please help ASAP 50points Find the cube roots of -1,8,-27,64
How do I do this problem?
Some things are difficult to observe so are built in order to study these phenomena hypothesis conclusions models
SpanishWhat does(¿ Cual este tu deporte fabeleto ?) and (¿ Cual este tu prefidedo deporte?)mean?​
what is 2+[4-8]-7 i need to know because my awnser wont come out right
What is 4(23) + 5(6)
List down the reason behind hunter-gatheresto move from place to place.​
A community sports league is raising money by making custom shirts to sell at league games. They plan to sell the shirts for $13. Each shirt cost six dollars to
The color wheel is designed so that virtually any colors you pick from it will look good together and these are called color harmonies *
23,579 38,743 65,559 +66.559