3 years ago

A rectangular prism has a length of 4 1/4 in a width of 3 in, and a height of 1 1/4 in.

Mathematics

1 answer:

olchik [2.2K]3 years ago

4 0

Answer:

4 1/4 × 3 × 1 1/4

Step-by-step explanation:

To find volume you need to do length×width×height

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A car is traveling at a speed of 30 miles per hour. what is the car's speed in miles per minute? how many miles will the car tra

Aleksandr-060686 [28]

30 divided by 60 is 1/2
1/2 miles per minute

10 x 1/2 = 5
5 miles in 10 minutes

Hope this helped

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3 years ago

If 7 liters of petrol cost $14.70, calculate the cost of 15 liters of petrol.

Alex73 [517]

7 = 14.70

15= X

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15 liters of petrol cost 31.5

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3 years ago

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If y varies directly as x and y = 21 when x = 5, find x when y = 42.

Lorico [155]

Answer: 10

<u>Step-by-step explanation:</u>

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k ⇒ $\frac{21}{5} = k$

Step 2: plug in the given value and k to solve for the missing value: $\frac{42}{x} = \frac{21}{5}$

42(5) = 21(x)

$\frac{42(5)}{21} = \frac{21(x)}{21}$

2(5) = x

10 = x

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2 years ago

What is the sum of the complex numbers 2 + 4i,and 3 − 7i, where i=-1

Elodia [21]

Answer:

5 - 3i.

Step-by-step explanation:

2 + 4i + 3 - 7i Bring like terms together:

= 2 + 3 + 4i - 71

= 5 - 3i.

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1 year ago

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A dealer bought a product for 25$ sold it for 26$, bought it back for 27$, and sold it for 28$.

Ronch [10]

He had a profit of $2. Made a $1 each time he sold it.

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3 years ago

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