Would it be 270? if you take 90 3 times. due to that there are 3 different durations.
        
                    
             
        
        
        
Answer:
   25 gallons
Step-by-step explanation:
Assuming miles-per-gallon is a constant, the amount of gas is proportional to the miles driven:
   gallons/(500 mi) = (13 gal)/(260 mi)
   gallons = (500 mi)/(260 mi)(13 gal) . . . . multiply by 500 mi
   gallons = 25 gal . . . . do the arithmetic
The van will need 25 gallons of gas to go 500 miles.
 
        
             
        
        
        
Answer:
12.9
Step-by-step explanation:
sin 59 = opposite/hypotenuse
opposite is x, the dimension facing the angle 59
hypotenuse is the longest side = 15
sin 59 = x/15
x = 15sin59 = 15 x 0.8572 =12.858 = 12.9 in the nearest tenth
 
        
             
        
        
        
Answer:
i doesn,t understand this language 
 
        
             
        
        
        
Answer:
sqrt3[sqrt3+2sqrt12]=sqrt3[sqrt3+4sqrt3] = sqrt3[5sqrt3= 3x5 =15