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Marina CMI [18]
3 years ago
8

At the track meet, Ervin won the 100-meter dash with a time of 12.45 seconds. Landon finished second. Landon's time contains a 4

with a value 1/10 the value of the 4 in Ervin's time. What could be Landon's time in the 100-meter dash?
Mathematics
1 answer:
solong [7]3 years ago
3 0
Breaking down the value 12.45 

12.45 = 10 + 2 + 0.4 + 0.05

The value of digit '4' in 12.45 is 0.4

1/10 of 0.4 is 0.4 ÷ 10 = 0.04

One possibility of Landon's time = 12.54 [Need to make sure that Landon takes longer than Ervin since he comes second]
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3 years ago
The width of a rectangle is 3 less than its length find the width of the rectangle if its perimeter is 26ft
Marta_Voda [28]

The width of rectangle is 5 feet.

Let us assume the length of rectangle to be x. So, the width of rectangle will be (x - 3).

Now, as per the known fact, perimeter, length and width of rectangle are related by the formula -

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Keep the values in formula to find the value of width

26 = 2 × (x + x - 3)

Performing addition of variables inside the bracket

26 = 2 × (2x - 3)

Shifting 2 to other side of equation to find the value of x

2x - 3 = \frac{26}{2}

Performing division to find the value of x

2x - 3 = 13

Shifting 3 to other side of equation to find the value of x

2x = 13 + 3

Performing addition to find the value of x

2x = 16

Shifting 2 as denominator to other side of equation to find the value of x

x = \frac{16}{2}

Performing division to find the value of x

x = 8

So, length of rectangle is 8 feet

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Width of rectangle = 8 - 3

Width of rectangle = 5 feet

Hence, the width of rectangle is 5 feet.

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7 0
1 year ago
How would you simplify this -5x+2x+7y-3x
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In these types of problems, the first step is to combine like terms. Like terms are terms with the same exponent (power), and the same variable (like all x's). In the above equation, we can combine -5x, 2x and -3y. Let's do it:
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The next step would be to factor out the common ratio, which is not applicable here, so your answer would be -6x + 7y. Hope this helps!
3 0
2 years ago
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zaharov [31]

Answer:

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Step-by-step explanation:

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