The Hall family and the Gray family each used their sprinklers last summer. The water output rate for the Hall family's sprinkler was 40 L per hour. The water output rate for the Gray family's sprinkler was 35 L per hour. The families used their sprinklers for a combined total of 75 hours, resulting in a total water output of 2800 L. How long was each sprinkler used

examine the two-step equation.

−  

7

4

+  

x

4

= 2

which property of operations allows you to add the same constant term to both sides?

multiplication property of equality

division property of equality

addition property of equality

subtraction property of equality

step-by-step explanation:

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

i have not got your picture clearly so see it once again