17 saci cu făină şi 26 saci cu cartofi cântăresc 2764 kg. iar 35 de saci cu cartofi şi 17 saci cu făină cântăresc 3250 kg. Cât cântăreşte un sac cu cartofi şi cât cântăreşte un
sac cu făină?

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?