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3 years ago

Can you help on this

Mathematics

2 answers:

zysi [14]3 years ago

6 0

Answer:

Third option

Step-by-step explanation:

12/11, 12:11, 12 to 11

Ahat [919]3 years ago

3 0

Answer:

Step-by-step explanation:

12/11, 12:11, 12 to 11

hope this helps.

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A car uses 10litres of fuel for a journey of 40km on the average.What distance will 25litres cover with the same car and speed?

Vadim26 [7]

Answer:

By unitary method

40/10 = 4km / litre

So,

4*25 = 100 km

The car covers 100km with 25 litres of fuel

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3 years ago

Newton’s Law of Cooling expresses the relationship between the temperature of a cooling object y and the time t elapsed since co

True [87]

Answer:

79 °F

Step-by-step explanation:

Newton’s Law of Cooling:

$y = ae^{-kt} + c$

Data

The initial temperature of a liquid is 160 °F

The temperature in the room (c) is 76 °F

Then a = 160 - 76 = 84 °F

k = 0.23

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Replacing into the equation:

$y = 84e^{-0.23 \times 15} + 76$

y = 79 °F

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4 years ago

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If g(x) = -4x + 5, find g(-3x).

nignag [31]

Answer: 12x + 5

Explanation:

g(x) corresponds to x, so you plug -3x into x. That equals -4(-3x) + 5. Multiply to get 12x + 5. Because you can’t add a number with a variable to a whole number, that’s your answer. Hope this helps!

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4 years ago

Jacob has 1/2 of a container of trail mix. He is filling snack packs that each use about 1/6 of a container. How many snack pack

kondaur [170]

Answer:

x = 3

Step-by-step explanation:

Jacob has 1/2 of a container of trail mix.

He is filling snack packs that each use about 1/6 of a container

We need to find the number of snack packs can Jacob make. Let he can make x snack packs.

$\dfrac{1}{6}x=\dfrac{1}{2}\\\\x=3$

Hence, he can make 3 snack packs.

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3 years ago

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saveliy_v [14]

Answer:40 times

Step-by-step explanation:

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