lali73
lali73
23-02-2021
Mathematics
contestada
60d+65n=2800
50d+45n=2150
Respuesta :
armannarimanyan04
armannarimanyan04
23-02-2021
From the second equation we can find that d=43-(9/10)*n
we can put this equation into the first one,
So we have equation 60(43-(9/10)*n)+65n=2800
Solving that we get n=20
60d+65*20=2800
d=25
So the answer is d=25 and n=20
Answer Link
VER TODAS LAS RESPUESTAS ( 25+ )
Otras preguntas
what is greater than 40 but less than 20
Was it a mistake for parliament to repeal the stamp act? Explain your answer.
What is the unit rate of 72 ounces in 6 steaks?
Make an equation with 123559 that equals 68.
Which descriptions of Russia's geography are correct? Choose all answers that are correct. A. Most of Russia's rivers flow northward into the Arctic Ocean. B. M
what conclusion has been drawn by historians and specialists in languages when they study the languages of many European cultures and the majority of languages
Each paper clip is 7/8 of an inch long and each cost $ 0.03 exactly enough paper clips are laid end to end to have a total length of 56 inches what is the total
Find the area of the figure. Assume all figures are made up of parallelograms and triangles. A. 48 m2 B. 60 m2 C. 108 m2 D. 135 m2 please help
•how ideas from the Middle Ages and Renaissance led to the Scientific Revolution
What island was purchased for a small amount of beads and other goods
