Okay, lets start with number 1.
is also equal to (x+3)(x+3)(x+3)
If you take the first two ones and multiple them out it ends up with or also know as
You see to multiply them you take the first number in the first group of parenthesis and use the distributive property on the second equation, then you do the same this but with the second number in the first equation.
So once you have you multiply it with your remaining (x + 3) using the distributive property to get
I hope this helps you get the answers for the other two.
d. if he pays 120 cents per litre, how much does it cost to drive to and from work each week? Remember to divide your answer by 100 to convert the cost to dollars and cents.
Answer:
(b) 950 km
(c) 90 litres
(d) $108
Step-by-step explanation:
Henry lives 95 km from work.
Number of km from home to work = 95 km
Number of km from work to home = 95 km
One day = 95 + 95 = 190 km
Assuming he works 5 days a week.
1 day = 190 km
5 days = 190 x 5 = 950 km
Assuming he works 5 days a week.
1 day = 18 litres
5 days = 18 x 5 = 90 litres.
Assuming he works 5 days a week.
1 litre = 120 cents
90 litres = 120 x 90 = 10800 cents = $108
The faucet was turned on for approximately 10.8 minutes.
This problem pertains to the division operation in mathematics. Given that 48.6 liters of water came out of the faucet and that 4.5 liters come out each minute, we can find the time the faucet was on by simply dividing the total volume by the volume per minute: 48.6 liters / 4.5 liters per minute which equals approximately 10.8 minutes. Therefore, the faucet was on for approximately 10.8 minutes.
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