simba196 simba196

01-08-2016
Mathematics

contestada

a + c =150
9a + 6c = 1155

Respuesta :

konrad509 konrad509

01-08-2016

[tex]a+ c =150\\ 9a + 6c = 1155\\\\ a+c=150\\ 3a+2c=385\\\\ -2a-2c=-300\\ \underline{3a+2c=385}\\ a=85\\\\ 85+c=150\\ c=65 [/tex]

Answer Link

Otras preguntas

10 gallons divided by 17 people

What did West Africans trade to North Africans in exchange for salt? (1 point) a.camels b.gold c.silver d.masks

Write each ratio or rate as a fraction in simplest form. 9 inches of rain in 30 days

round 8.876 to the nearest whole number

How does endosymbiosis play A role in evolution of prokaryotes and eukaryotes and how are mitochondria important to this evolution?

Which is the chemical name of the product formed when copper reacts with gas in air?

You have decided to study the effect of loud noise on plant growth. You put one plant in a quiet room and the other plant in your school's band hall. Providing

How do you think Africa's economic health affects the spread of diseases such as cholera and aids?

Express 14 100 000 in scientific notation

Seven out of every 8 students surveyed owns a bike. The difference between the number of students who own a bike and those who do not is 72. How many students