Answer:
they rest for 36 minutes
Step-by-step explanation:
27 minutes x
----------------- = ---------------
6 hrs 8 hrs
using cross products
27 * 8 = 6x
divide by 6
27*8/6 = x
36 minutes = x
Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (- 3, 0 ) and (x₂, y₂ ) = (0, - 2 ) ← 2 points on the line
m =
=
= - 
The line crosses the y- axis at (0, - 2 ) ⇒ c = - 2
f(x) = -
x - 2 ← function rule
Answer: y=-2x+3
Step-by-step explanation:
M= 1--2/-1-5
Y-1=-2(x-1)
-2x+2+1
Y=-2x+3
A. 18 is 20% of 90
B. 15 is 25% of 60
C. 12 is 30% of 40
D. 24 is 40% of 60
E. 39 is 60% of 65
F. 78 is 30% of 234
(Sorry I have to go, but hopefully I helped you)
Answer:
x=−3 and y=7
Step-by-step explanation Solve: 7x+2y=−7for x:
7x+2y=−7
7x+2y+−2y=−7+−2y(Add -2y to both sides)
7x=−2y−7
7x
7
=
−2y−7
7
(Divide both sides by 7)
x=
−2
7
y−1
------------
−2
7
y−1forxin11x+5y=2:
11x+5y=2
11(
−2
7
y−1)+5y=2
13
7
y−11=2(Simplify both sides of the equation)
13
7
y−11+11=2+11(Add 11 to both sides)
13
7
y=13
13
7
y
13
7
=
13
13
7
(Divide both sides by 13/7)
y=7
------------------------
Substitute7foryinx=
−2
7
y−1:
x=
−2
7
y−1
x=
−2
7
(7)−1
x=−3(Simplify both sides of the equation)