foddlyneedhelp foddlyneedhelp

01-06-2018
Mathematics

contestada

Alex and Benny had 440 cards. Alex and Cruz had 320 cards. Benny had 3 times as many cards as Cruz. How many cards did Alex have?

Respuesta :

ashleyspandya ashleyspandya

10-06-2018

260 cards.

Process:
A = Alex
B = Benny
C = Cruz

a+b=440
a+c=320

a=440-b
a=320-c

a=440-b=320-c

b=3c

a=440-(3c)=320-c
-3c+440 = -c+320
-3c=-c-120
-2c=-120
c=60

a=320-c
a=320-60

a=260

Answer Link

Otras preguntas

If a product is selling so well that the price can be raised over time, what is the company producing it likely to do?

Cpt code under E/M code for 2yr old boy who was hospitalized for bacterial pneumonia. Been on antibiotic therapy for 5 days. Developed a fever of 101 and mild r

HELP ME ASAP PLEASEEE!!! <3 What is the value of d? Round your answer to the nearest tenth. A. 9.1 mm B. 11.9 mm C. 26.3 mm D. 34.1 mm

Which nursing diagnosis would be most appropriate for a child with idiopathic thrombocytopenic purpura?

Which is the equation of the line that passes through the points [4/5,1/5] and [1/2,3/2]?

Which of the following climate regions has the widest temperature range? A. Arctic B. Subarctic C. Marine west coast D. Tropical

For a set of data, the average squared deviation from the mean, with a denominator of n-1 is called the:

Find the area of a circle with a circumference of \blueD{31.4}31.4start color blueD, 31, point, 4, end color blueD units.

A Roman contribution to literature

The president can call a ________ session of congress, at which time both the house and senate meet together.