9514 1404 393
Answer:
x = 20
Step-by-step explanation:
The sum of the given angle expressions is 90°, the measure of the right angle:
x + (3x +10) = 90
4x = 80 . . . . . . . . . subtract 10
x = 20 . . . . . . . . . . divide by 4
Answer:
An acute angle is an angle that has a measure that is less than 90 degrees. Any measure that is less than 90 degrees could be an acute angle. For example, 8°, 15°, °26°, and 89° are all acute angles. Anything that is 90 degrees is a right angle and greater than 90 degrees is an obtuse angle. An acute angle can have all of the following measures except 90 degrees or greater than 90 degrees.
Amounttotal=amount per day times number of days
200=17.1 times d
divide both sides by 17.1
11.695=d
about 12 days
Step-by-step explanation:
(1) x+10y=20, x=20,y=2
(2) 6x+y=-18, x=-3,y=-18
(3) 2x-9y=-36, x=-18,y=4
(4) x=-6,y=-15
(5) x=9,y=12
(6) x=-18,y=-3
(7) x=16,y=-6
(8) x=14,y=8
(9) x=-12,y=9
(10) x=-15,y=-6
(11) x=12,y=10