Answer:
Step-by-step explanation:
let the speed of Landon=x
speed of Eduardo=x+9
5x+5(x+9)=135
divide by 5
x+x+9=135/5=27
2x+9=27
2x=27-9
2x=18
x=18/2=9
speed of Landon=9 mph
speed of Eduardo=9+9=18 mph
Answer:
6 liters of lemon-lime soda
3 pints of sherbet
9 cups of ice
Step-by-step explanation:
divide the original by 2 the add that to the original
Answer:
128mm^2
Step-by-step explanation:
Surface area of a triangular prism formula: bh+(S1+S2+S3)h
base= 8
height= 5
side 1 =5.8
side 2= 5.8
side 3= 6
8*5+(5.8+5.8+6)5
40+(17.6)5
40+88=128
128 mm
hope this helps!
Answer:
Step-by-step explanation:
A∩B=[-54,-42]∪[-25,70]
Answer:
x = 7/24 y = -1/18
Step-by-step explanation:
3y = -4x + 1
y = (-4/3)x + (1/3)
*plug into the other equation
12x - 9(-4/3x + 1/3) = 4
12x + 12x - 3 = 4
24x = 7
x = 7/24
*now plug into original equation
y = (-4/3)(7/24) + 1/3
y = -1/18