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?

Question

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 :

Otras preguntas

Which of the following is not a use for line graphs? * A. to track changes over a short period of time B. to track changes over a long period of time C. to trac

I really need help!

Match the following trigonometric ratios with the correct equation for the triangle shown below.

The car traveled 63 miles in 3 hours. At this rate, how many miles will the car travel in 1 hour?

Think about all the decimals that would come between 7.8 and 7.9 on a numberline... What does the green point represent as a decimal on a numberline? Decimals

Which of these is a complex number? A. 9+3√5/2 B. 8/3+√-7/3 C. 2-1/√11 D. 5√1/3-9/√7

Andrew drew a square with each side measuring 3 inches. Lindsay drew a triangle with each side measuring 4 inches. Which shape has a greater perimeter? Write a

I need help with this question:(

the amount of increase or decrease in a function usually written as a fraction

ashleyspandya ashleyspandya · Answer 1 · 2018-06-10T21:48:00+02:00

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