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alekssr [168]
2 years ago
9

Complete the steps to solve the inequality: 0.2(x + 20) – 3 > –7 – 6.2x Use the distributive property: Combine like terms: Us

e the addition property of inequality: Use the subtraction property of inequality: Use the division property of inequality: 0.2x + 4 – 3 > –7 – 6.2x 0.2x + 1 > –7 – 6.2x 6.4x + 1 >
Mathematics
2 answers:
Rzqust [24]2 years ago
7 0

0.2x+4-3>-7-6.2x

0.2x+1>-7-6.2x

0.2x+0.6x>-8

0.8x>-8

the correct answer is: x>-1.25

IRISSAK [1]2 years ago
3 0
0.2(x + 20) - 3 > -7 - 6.2x.....distribute trhr the parenthesis
0.2x + 4 - 3 > -7 - 6.2x...simplify
0.2x + 1 > - 7 - 6.2x...addition property...add 6.2x to both sides
0.2x + 6.2x + 1 > -7 ...simplify
6.4x + 1 > - 7.....subtraction property....subtract 1 from both sides
6.4x > -7 - 1....simplify
6.4x > -8....division property....divide both sides by 6.4
x > -8 / 6.4...simplify
x > - 1.25 <==
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Total cost for tiles and paints is $924.  

Step-by-step explanation:

We have been given that a community hall is in the shape of a cuboid. The hall is 40m long 15m high and 3m wide.

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Answer:

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Given the function H(t) which gives the heart rate as per time.

That means Heart rate of the runner changes according to time.

H(t) is a function which takes Time as input as observed by the function's representation. In bracket, there is t.

That also means time t is the input to the function H(t).

It is also given that during the time as the runner runs, the heart beat will change.

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Domain of a function is the valid inputs that can be given to the function for which the output of the function is defined.

Here, time in minutes is the input to the function.

So, maximum time can be 57.5 minutes.

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Therefore, the domain is [0, 57.5]

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