Answer: 2/14; 3/21; 4/28
Step-by-step explanation:
Equation x y = -4y implies x=-4
Replacing the value of x in the following equation:
-4y = 2(-4)-1 implies y = 9/4 = 2.25
Answer:
the length is 8ft
the width is 3ft
Step-by-step explanation:
Step one:
given
perimter= 22ft
let the length be x
width = x-5
Step two
the expression for the perimeter of a rectangle is
P=2L+2W
substituting our data
22= 2(x)+2(x-5)
open brackets
22=2x+2x-10
collect terms and solve for x
22+10=4x
32=4x
divide both sides by 4
x= 32/4
x= 8ft
the length is 8ft
the width = x-5= 8-5= 3ft
Triangle Area = .5 * base * height
Triangle Area = .5*15*12
Triangle Area = 90
Answer: 875
Explaination: in order to find how many words he can read in 25 minutes we need to find how many words he can read in one minute then multiply that by the number of minutes he read. Like this
420÷ 12=35 35x25=875
