In order to find the number of cans of food he gave to the first charity, the number of cans of food he has left needs to be subtracted from the number of cans he collected.
The array represents the multiplication sentence, . Note. There are 4 rows and 6 x’s in each row.
Since he approved 13 trees out of every group of trees and surveyed 15 groups, he approved trees, or 195 trees.
The value of y is indeed 4 times the value of x. Note. 4 is 4 times the value of 1; 8 is 4 times the value of 2; 12 is 4 times the value of 3; and 16 is 4 times the value of 4.
93°: Since the angle of a straight line is known to be 180°, then 38° and 49°can be subtracted from that to get 93°.