dawnlib42owt36s dawnlib42owt36s

25-09-2017
Mathematics

contestada

a student has some $1 and $5 bills in his wallet. he has a total of 16 bills that are worth 56

Respuesta :

texaschic101 texaschic101

25-09-2017

x = $ 1 bills, y = $ 5 bills

x + y = 16......x = 16 - y
x + 5y = 56

16 - y + 5y = 56
16 + 4y = 56
4y = 56 - 16
4y = 40
y = 40/4
y = 10 <== there are 10 five dollar bills

x + y = 16
x + 10 = 16
x = 16 - 10
x = 6 <=== there are 6 one dollar bills

Answer Link

Otras preguntas

The next layer is the ____________ where the existing, columnar chondrocytes enlarge and thus force the separations between lacunae to become very thin. . (a)-

which novel revealed unsanitary conditions in Chicago's stockyards?

Quiz Active TIME 1 2 Which best explains or justifies Step 2? A student is deriving the quadratic formula. Her first two steps are shown. Step 1: -<= ax2 + b

The frist colonists started their own government

Monique deposited her money in the bank to collect interest. The first month, she had $225 in her account. After the sixth month, she had $273.75 in her account

what is slope intercept form?

Russ broke the rule about using outdoor equipment outdoors only. He threw the baseball and put a dent in the trash can. Russ loves to play baseball, but now he

Sydney is accelerating at a rate of -2.7 m/s^2. She comes to a complete stop after 83.2 seconds. How fast was she going?

703 rounded to the nearest hundred

Which statement best describes the role of animals in the water and carbon cycles? Animals release carbon dioxide and water vapor as a by-product of cellular