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

ARE SOCIETY’S GREATEST LEADERS POLITICIANS SCIENTIST OR ARTIST? or someone else?

5 minus the square of a number.

Data Set #1 The following data were collected using a car with a water clock set to release a drop in a unit of time and a meter stick. The car rolled down an i

Simplify the expression completely. −4g+8−5+ 2g

Due to gravity, layers of _____ originally form _____. A. rock; vertically B. rock; at an angle C. sediment; vertically D. sediment; horizontally

how did the civil war affect industries in the north?

liure2) ¿ Porqué es importante cooperar?

Read this excerpt from "The lady of Shallott" by Alfred, Lord Tennyson. Which line describes how the world of lady of Shalott differs from that of Camelot?A. Li

At December 31, 2021 and 2020, Sheridan Company had 171000 shares of common stock and 12000 shares of 7%, $100 par value cumulative preferred stock outstanding.

Imagine that you are an adviser to President Truman. You must persuade him to use or not to use the atomic bomb against Japan. Which position do you take? How d