Answer:
he worked for 6 hours and 30 min
Step-by-step explanation:
what you do is take 53.30 and divide it by 8.20
Let
s be the speed of the ship, and
c be the speed of the current.
We know that distance equals speed multiplied by the time.
With the current

or

This is our first equation.
Now, against the current, we have

or

This is our second equation.
We solve the equations simultaneously, by adding them together

Substitute s=87.5 to the first equation to solve for c.

The speed of the ship is 87.5 km/hr and the speed of the current is 17.5 km/hr.
Answer: 1.72 kilograms
Step-by-step explanation:
From the question, Ricardo is making a container of trail mix with 3.5 kilograms of nuts and he has 1.78 kilograms of almonds while the remaining of the nuts will be cashews.
To get the kilograms of cashews nuts that are needed, we subtract the kilograms of almonds from the total container. This will be:
= 3.5 kg - 1.78 kg
= 1. 72 kg
Answer:
Flat fee of 20 dollars with 5 dollaers every hour=
20+h5
Step-by-step explanation:
Answer: $70
EXPLANATION
Given, for a 4 inch wide crown molding:
8 ft length costs $14
Cost of 40 ft length = ?
8 ft length costs $14
To find the cost of 1 ft length,
Divide through by 8
8ft/8 length costs $14/8
1ft costs $1.75
Now, to find the cost of 40 ft length
1ft costs $1.75
1 ft x 40 would cost $1.75
40 ft would cost $70
Therefore, it would cost $70 to buy 40 ft of crown molding