However because you can use however as “but”
Answer: Average speed of boat = 32mph
Step-by-step explanation: Full question: 5 hours 20mins. Find the average speed of the boat
Let average speed of boat be mph
Let time to travel downstream = 80/(x + 8 )
Let time to travel upstream = 80/( x - 8)
Total time = 51/3 hrs=16/3 hrs
80/(x +8) +80/(x-8) = 16/3
Multiply both sides with3(×+8)(x-8)
(X+8)(x-8) = (x+8)(x-8)/16
15(2x)=x^2-64
X^2 -30x - 64 =0
Factorizing,you get
(x - 32)(x + 2) => ×=32 or x= -2
x = 32mph
Answer:
13* 4= 52
Step-by-step explanation:
x=4 so ... 13*4= 52
Answer:
$2.15
Step-by-step explanation:
if each can is .95 and she bought 3, start by multiplying. .95 x 3 = $2.85. Now subtract that from $5.00. 5.00 - 2.85 = 2.15
Answer:
Step-by-step explanation:
Equation is y= 200x+30000
Table in order goes 30000, 30200, 30400, 30600, 30800
To graph your y intercept would be 30000 and slope is 200