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GaryK [48]
3 years ago
5

Need a little help :,)

Mathematics
1 answer:
alekssr [168]3 years ago
8 0

Answer:

A  a.  25 minutes

Step-by-step explanation:

Let x = time in minutes.

Aquarium I contains y water at time x.

y = 4.6 + 1.2x

Aquarium II contains y water at time x,

y = 54.6 - 0.8x

We want the amounts of water to be equal, so we set the right parts of the equations equal and solve for x, the time in minutes.

4.6 + 1.2x = 54.6 - 0.8x

Subtract 4.6 from both sides.

Add 0.8x to both sides.

2x = 50

Divide both sides by 2.

x = 25

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Solve for Fahrenheit<br> Fahrenheit=9/5Celcius+32 C is 10
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Answer:

Fahrenheit = 50°F

Step-by-step explanation:

Equation: F = ⁹/₅C + 32, C = 10

Plug in: F = ⁹/₅(10) + 32

Multiply: F = 18 + 32

Add: F = 50

3 0
4 years ago
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Firlakuza [10]

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5 0
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Which of the following is an expression? *
Yanka [14]

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3m

Step-by-step explanation:

An expression does not have an equals sign

An equation has an equals sign

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4 0
3 years ago
Can u plz answer these easy questions asap &lt;not 7 and 8&gt;
dedylja [7]

6*4*5=120

12*12*12=576

10*3*7=210

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3 0
3 years ago
How many more ways can 10 juniors running for the positions of president, vice president, secretary, treasurer be selected when
zubka84 [21]
10 juniors are running for 4 positions. 
There are ten people who can get into the first spot
Nine people for the second
8 people for the third
7 for the fourth
10x9x8x7= 5040 different ways. 

For the sophomores: 12x11x10x9x8= 95040
However, the positions are identical which means that the order doesn't matter. (There's a difference between A getting postion 1, B for 2, C for 3, D for 4 and B for 1, A for 2, C for 3, D for 4)

There are 5 identical positions, therefore we divide this by 5! (5x4x3x2x1)= 120
95040/120= 792
Juniors have 5040 positions, sophomores have 792





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5 0
4 years ago
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