New tiles are being laid in the school hallway the tiles measure 1 foot by 1 foot the hallway is 75 feet long and 9 feet wide how many tiles will be needed to cover the floor of thr hallway

Step-by-step explanation:

GIVEN: new tiles are being laid in the school hallway the tiles measure foot by foot the hallway is feet long and feet wide.

TO FIND: how many tiles will be needed to cover the floor of the hallway.

SOLUTION:

as tile is square, area of one tile  

as hallway is rectangular ,area of school hallway

number of tiles required

Hence total tiles are required to cover the floor of hallway.

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form