versachiii versachiii

03-03-2018
Mathematics

contestada

After the bake sale, Lora had 24 bills, some were $10, and rest were $5 bills. The total amount of money was $140. How many of each denomination did she have? Define your variables. Write the two equations and solve.

Respuesta :

turtleoogway turtleoogway

05-03-2018

140 = 10x + 5y
24 = x + y

x = 4
y = 20

x is the number of $10 bills (So 4 $10 bills)
y is the number of $5 bills (So 20 $5 bills)

Answer Link

Otras preguntas

After transcription occurs, an mRNA transcript enters the cytoplasm. A short section in the middle of the transcript has the following codon sequence: GUCCCUGGG

(2x^3+6x-1)+(3x^2-7x)

Westenhover City is a municipality that has governmental activities, business-type activities, a discrete component unit, and a blended component unit. Which of

The concentration of agarose gel affects the resolution of DNA separation. For a standard agarose gel electrophoresis, a 0.8% gives good separation or resolutio

Companies such as Time Warner have extensive holdings in radio and television stations, cable television companies, book publishing firms, and film production a

Where is the number 3 - 7 located on a horizontal number line? O 4 units to the left of 3 0 7 units to the left of 3 4 units to the right of 3 7 units to the ri

Describe the reactions during the electrolysis of water : A) Oxygen is reduced and hydrogen is oxidized. B) Oxygen and hydrogen are both oxidized. C) Oxygen

can formaldehyde molecules dissolve well in water?

Lisa boarded her cat a kennel that charged 9.25 per day. Lisa boarded her cat 9 days. If her deposit was 1/5 of the total cost, what was the amount of her depos

Which of the following is NOT a function of the CSF?a.nourishment of the brainb.protection from blowsc.initiation of some nerve impulsesd.reduction of brain wei