If an object falls 225 feet in three seconds, how long will it take the object to fall 81 feet

1 answer:

8 0

1.08 seconds because if you use cross multiplication by putting 3 over 225 = x over 81, using cross multiplication is 3 times 81 and 225 times x. So then you have 3 times 81 is 243 then divide by 225 to get x and you get 1.08 secs

You might be interested in

Solve the equation using the method that seems appropriate.

Lera25 [3.4K]

The answer is x=-5.5 . 2x-3 = 4x+8 . subtract 2x from both sides and then subtract 8 from both sides and get -11=2x . then divide both sides by 2 to get . -5.5=x

8 0

3 years ago

You have 80 pieces of fabric to make a wall hanging. Each piece of fabric is a square with a side length of 5 inches. You use as

tensa zangetsu [6.8K]

Okay. fist off don't think of them as 5 units each, but 1. so if you were to put it on graphing paper and box squares each time. you would be able to get 8 in for both sides to make a square. Area then would be 1600ft squared because 8 ×5 is 40 and 40×40 is 1600. then you calculate how many squares you used. 8×8=64. and 80-64=16 so 16 pieces are left over. then 9×9 (increasing the square) is 81. so 17 pieces to increase it.

5 0

3 years ago

Read 2 more answers

Malia works at a movie theater and is paid hourly. One month, she earned $388.80. The total amount she earns can be found using

AlekseyPX

Answer:

Malia's unit rate is greater than Bill's by $0.05.

Step-by-step explanation:

Consider the provided information.

The total amount she earns can be found using the equation y = 8.1x, where x is the number of hours she works and y is the total amount she earns in dollars.

The unit rate, when written as a fraction, has a denominator equal to one.

The unit price of Malia is $8.1

For Bill works:

Number of hours Total amount earned

18 $144.90

28 $225.40

35 $281.75

Unit price would be:

\begin{gathered}\dfrac{144.90}{18}=\dfrac{y}{x}\\\\8.05=\dfrac{y}{x}\\\\y=8.05x\end{gathered}

144.90

8.05=

y=8.05x