we are given
system of equations
First equation is
Second equation is
now, we can find augmented matrix
now, we can change it into reduced row echelon form
step-1: multiply the 1st row by 1/3
step-2:add -3 times the 1st row to the 2nd row
step-3:multiply the 2nd row by 1/4
step-4: add 2/3 times the 2nd row to the 1st row
so, we get
Answer is (5,-8)
Use the tens.Try 30x80. 76 rounds up to 80 and 33 rounds down to 30.
Answer:
3 pints
Step-by-step explanation:
1 1/2 as a decimal is 1.5
1 quart = 2 pints
1.5 x 2 = 3 pints,
hope i helped you!
If there are 15 boards there are 14 gaps in-between.
But first, 15 boards each 9 and 1/4th inches so you get a total of 138 inches and 3/4th
If you subtract that from 144 you get 5 inches and 1/4th. The remaining amount is the total of all of the distance from the spacing.
Then you divide that by 14 (number of gaps/spacing in-between.)
So you get .375 inches. (3/8)
So width of the spacing between each board is 3/8ths of a inch
Area of square = 2 x 2 = 4
Area of triangle = 1/2(2)(2) = 2
4 + 2 = 6
answer
6 units^2
