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

Find the slope of the line whose equation is px - qy = r + 1.
read the passage. michael was a really big guy. he was a linebacker on the football team, and his shoulders were twice the size of most people’s. everyone knows
karim is reading a myth from south america. he finds a footnote in the text. what might that footnote provide to help karim better understand the myth? dialogue
who are the ethnic majority in china
what is a chart sheet?
the density of gas particles in a section of earth’s atmosphere decreases. which of the following is the most likely explanation for this event? the air pressur
true or false. For a trigonometric function, y=f(x) then x=F-1(y). Explain your answer. Can someone help me please?
Anyone 27 percent of 93 pls
what is generally a safe frequency of activity for a workout? (1 point)
your science teacher hands you a small container filled with an unknown liquid substance. he asks you to measure the mass of the liquid. what lab equipment will