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2 years ago

7

Susie is going to watch a programme which begins at 20:30 and lasts for one hour and forty five minutes what time will it finish

?

1 answer:

katen-ka-za [31]2 years ago

3 0

Answer:

22:15

Step-by-step explanation:

1 hour = 60 mins

20:30 + 45 mins

= 21:15

Plus another hour

21:15+ 1 hour= 22:15

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Your soda cost $1.95 but you get a deal for 2 for $3 how much money are you saving?

kiruha [24]

Answer:

45 cents

Step-by-step explanation:

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3 years ago

A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of 64 ft3. what dimensions y

Doss [256]

To solve this problem you must apply the proccedure shown below:

1. You must use the formula for calculate the surface area and the volume of the tank:

$1) SA=x^{2} +4xy\\ 2) V=x^{2} y\\ 64=x^{2} y$

2. Solve for $y$ in the second equation and substitute it into the first one.Then, you have:

$y=\frac{64}{x^{2}} \\ SA=x^{2} +4x(\frac{64}{x^{2}})$

3. Now, derivate:

$SA'=2x-256x^{-2} \\ 2x-256x^{-2}=0$

4. When you solve for $x$ , you obtain:

$2x^{3}-256=0\\ x=\sqrt[3]{\frac{256}{2}} \\ x=5.03$

5. Now, you must calculate $y$ :

$y=\frac{64}{(5.03)^{2}} \\ y=2.52$

Therefore, the dimensions are:

The sides of the base of the tank: $5.03 feet$

The height of the tank: $2.52 feet$

8 0

3 years ago

Solve the compound inequality<br><br>4 < x - 5 < 12

uysha [10]

4 < x - 5 < 12

4 + 5 < x < 12 + 5

9 < x < 17

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3 years ago

If m ∠ 1 = 122, what is the value of x?

Lady bird [3.3K]

Answer:

122

Step-by-step explanation:

They are equal

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3 years ago

Paul [167]

Answer: D. 3/2

Step-by-step explanation:

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3 years ago

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