This one I believe is easier than it looks. First you want to start by isolating the part with the exponent. To do this start by dividing both sides by (1/4) and you get….
(5/6)^x= (25/36)
Immediately, it’s noticeable that 25 is 5^2 and 36 is 6^2
So you can rewrite this equation as
(5/6)^x=(5/6)^2
Because the bases are the same now, all you need to do is solve for the exponents. In which you get x=2.
Answer:
x = number of bicycles = 35
y = number of cars = 55
Step-by-step explanation:
Let
x = number of bicycles
y = number of cars
x + y = 80 (1)
2x + 4y = 270 (2)
From (1)
x = 80 - y
Substitute x = 80 - y into (2)
2x + 4y = 270 (2)
2(80 - y) + 4y = 270
160 - 2y + 4y = 270
- 2y + 4y = 270 - 160
2y = 110
y = 110/2
y = 55
Substitute y = 55 into (1)
x + y = 80 (1)
x + 55 = 80
x = 80 - 55
x = 35
x = number of bicycles = 35
y = number of cars = 55
Answer:
60°
Step-by-step explanation:
Assuming EAD is a straight line: 180 - 100 - 20 = 60°
Answer:5.25
Step-by-step explanation:
multiply it
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