150 miles
50 mph for three hours
So multiply 50 and 3
150
(a) 5
(b) 8
(c) 9
Idk the options for the (Choose one) sorry.
Answer:
4
Step-by-step explanation:
Given
x +
← substitute x = 2 + 
= 2 +
+ 
Rationalise the denominator of the fraction by multiplying the numerator/ denominator by the conjugate of the denominator.
The conjugate of 2 +
is 2 -
, thus
= 2 +
+ 
= 2 +
+ 
= 2 +
+ 2 - 
= 4
100/60 = x/36
Cross Multiply
3600 = 60x
x = 60
First place pays $60 when second place pays $36.
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