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

Today I wore two different shoes! Oh boy! I am a mess! Fell on my face and got a bruise Oh boy! I am a mess! I poured some ketchup on my dress Oh boy! I am a me

High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capability Challenge Exam. Students

When she was 4 years old, Inge was sexually abused by her uncle. At 14, Inge felt uncomfortable whenever she saw this uncle but was unable to understand why she

What is a goal of a common community health program?

What is the range of the function in this table? x y 2 1 3 4 4 4 5 2 A. (2, 1), (3, 4), (4, 4), (5, 2) B. {1, 2, 4} C. (2, 1) D. {2, 3, 4, 5}

Do you know the answer?

What would the value of x be

What is the theme of The R^pe of the Lock? Does this theme apply today?

The local school board would like to change the school calendar so that students are in school year-round. Do you think this is a good or a bad idea?

I need help can someone please do so?