math for elementary

Elementary transformations are of the following three types: Interchange of any two rows (or columns) The multiplication of the elements of a row (or column) by a non-zero number. The addition to the elements of any row (or column) the corresponding elements of any other row (or ..

Elementary transformations are of the following three types: Interchange of any two rows (or columns) The multiplication of the elements of a row (or column) by a non-zero number. The addition to the elements of any row (or column) the corresponding elements of any other row (or ..

The enrollments made in elementary schools and high schools from 1994 through 1998 is shown in the double bar graph. Which year has the maximum difference between enrollments of high schools and elementary schools? => 1994 or 1997 or 1995 or 1996..

25 children from Ever Dale Elementary School are going on a picnic in vans. Each van can hold 7 children and the driver. How many vans must be rented? => 5 or 6 or 4 or 3..

The bar graph shows the expenditure on the elementary and high schools from 1994 through 2002. In which year did the expenditure on elementary schools exceeded $400 millions and in which year did the expenditure on high schools exceeded $300 millions? => 1998, 1998 or 1998, 2002..

289 elementary school students and 120 middle school students wrote letters for a time capsule. Estimate the total number of letters written. => 410 or 400 or 300 or 500..

The table details the School Enrollment in the U.S. in two different years. Find the ratio of the number enrolled in the Elementary School to the number enrolled in the Secondary School during the year 1990. => 7 : 6 or 6 : 7 or 6 : 17 or 17 : 6..

In St. Paul's Elementary School, 30 students like Apple, 40 like Mango, 40 like Banana, 30 like Apricot, 50 like Orange, and 20 like Pear. Which pictograph represents the data correctly? => Graph 1 or Graph 2 or Graph 3 or Graph 4..

Perform the elementary row operation (-1)R 3 + R 1 on the matrix ( 3 1 5 1 -1 2 0 1 3 ) . => ( 3 1 0 1 -1 2 0 1 2 ) or ( 3 0 2 1 -1 2 0 1 3 ) or ( 3 1 5 1 -1 2 0 1 2 ) or ( 3 1 5 0 1 2 0 1 2 )..

The frequency table shows the school enrolment (in thousands) in the year 2000. Let E represents elementary school. Pre Primary Elementary or high school College or graduate school California 1101 6472 2557 New Jersey 303 1444 470 Use the table to find P(E). => 25.57% or 11.01% ..