we are given
Jim can lay bricks for a fireplace and chimney in 5 days
Jim's 1 day work is
we are given
With his father's help he can build it in 2 days
so, both can do same work in 2 days
so, both's 1 day work is
Let's assume
his father to build it alone in x days
his father 1 day work is
so, both's 1 days work is
so, we can set it to 1/2
we get
now, we can solve for x
now, we can cross multiply
now, we can solve for x
so,
his father to build it alone is
............Answer
Question:
At noon a tank contains 6 cm of water after several hours it contains 3 cm of water what is the percent decrease of water in the tank
Answer:
The percent Decrease of water in the tank is 50%
Step-by-step explanation:
Given:
Initial amount of water in the tank at the noon = 6 cm
amount of water remained in water after several hours = 3 cm
To Find:
The percent decrease =?
Solution:
The percent decrease in the tank
=>
Substituting the values
=>
=>
=>
=> 50
Well since the line is headed to the left side, you know it has a negative slope, so B and C can be crossed out. Then, you know that point-slope form is written as y - y1 = m (x - x1)
So, you just plug in the numbers given on the graph, (4,-2)
You should come out with y + 2 = -2 (x - 4)
And that's the equation of the line in point-slope form!!! :)
Hope it helped and you understand it better!
D.) y + 2= -2 (x - 4)
32 + 2x = 84
2x = 52
x = 26
child's ticket is $26
350 ÷ 6 = 58.33
58.33 pounds of chocolate per hour
58.33 × 10 = 583.3
583.33 pounds of chocolate in 10 hours
