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irina1246 [14]
3 years ago
13

Which of the following is the solution to the equation x + 7.4 = 49.8? 14.8 27.6 42.4 57.2

Mathematics
2 answers:
Talja [164]3 years ago
3 0
X + 7.4 = 49.8
x = 49.8 - 7.4           //Take away 7.4 from both sides
x= 42.4 

-------------------------------------
Answer: 42.4 
-------------------------------------
kondaur [170]3 years ago
3 0

Answer:

The correct option is 3.

Step-by-step explanation:

The given equation is

x+7.4=49.8

We need to solve this equation to find the value of x.

Subtract 7.4 from both the sides.

x+7.4-7.4=49.8-7.4

On simplification, we get

x=42.4

The value of x is 42.4. So,the solution of the given equation is 42.4.

Therefore the correct option is 3.

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Answer:

\dfrac{96}{40} and \dfrac{120}{50}

Step-by-step explanation:

24 kernels in 10 minutes

In 1 minute she can eat \dfrac{24}{10}=\dfrac{12}{5}\ \text{kernels}

let x be the number of popcorn and minutes so the rate of eating popcorn is of the form

\dfrac{x12}{x5}

So, when x = 6 we get

\dfrac{6\times12}{6\times 5}=\dfrac{72\ \text{kernels}}{30\ \text{minutes}}

x can be any real number

\dfrac{10\times 12}{10\times 5}=\dfrac{120\ \text{kernels}}{50\ \text{minutes}}

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