Answer:
a) 115°
b) 140°
c) 75°
d) 255°
Step-by-step explanation:
a) another line parallel to AB through E will split x into two sectors.
Parallel lines intersected by a third line makes opposite internal angles of equal value. Supplemental angles add to 180°
x = (180 - 120) + (180 - 125) = 115°
b) double application of parallel lines intersected by a third line making corresponding angles identical.
c) more of the same
d) more of the same
Answer:
45, 36
Step-by-step explanation:
let x y minutes be the time for pipes to fill the tank, let n be the water needed to fill the tank.
x-y=9
(n/x)*20+(n/y)*20=n
n is removed by dividing the 2nd equation by n
here u get:
(1/x+1/y)*20=1
you sub x=9+y into the above equation
1/y+1/(9+y)=1/20
((9+y)+(y))*20=(9+y)(y)
180+40y=9y+y2
y2-31y-180=0
then use the quadratic formula and u will find y=36 or -5
-5 is rejected because it is negative
x=36+9=45
therefore it is 36 mins and 45 mins
Answer:
C. Marie should make sure she surveys both the fathers and mothers.
Answer:
D
Step-by-step explanation:
75=(4*25)=C
- it means 25*3 which is the new price for the Fifth month should be equal to 75
- <em><u>7</u></em><em><u>5</u></em><em><u> </u></em><em><u>=</u></em><em><u>7</u></em><em><u>5</u></em><em><u>=</u></em><em><u>C</u></em>
Answer:
72 miles per gallons
Step-by-step explanation:
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