We know that
In a period of 4 hours (3 hours of work and 1 hour to refuel)
each street sweepers clean------> 3 miles*3 =9 miles
divide 18 hours by 4
18/4=4.5
4.5 is equal to 4 periods of 4 hours plus 2 hours
Multiply 4 by 9 miles
4*9=36 miles
in the period of 2 hours (<span>in this period there is no refuel)
</span>3*2=6 miles
each street sweepers clean in 18 hours-----> (36+6)-----> 42 miles
two street sweepers clean in 18 hours=2*42------> 84 miles
the answer is
84 miles
Think of it like an equation: (w = width, l = length)
5 = 2w - l
lw = 150
l = 150 / w
5 = 2w - (150/w)
5w = 2w^2 - 150
2w^2 - 5w - 150 = 0 <- you can see this is now a quadratic equation
w = (-b^2 + sqrt(b^2 - 4ac))/2a
w = 10
width = 10
The question is asking to calculate the said expression and base on my research and further investigation, I would say that the answer would be -13, I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarification. Have a nice day!
Answer:
For pattern x its 9,12,15
And for y its 3,4,5
2 question
The ordered pairs are (9,3) (12,4) (15,5)
Step-by-step explanation:
Answer:
x= -2 or 4
Step-by-step explanation:
|1-x|=3
1-x=3 or -(1-x)=3
x= -2 or 4