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morpeh [17]
3 years ago
5

Write an inequality for the sentence below and then solve and check it. The sum of w and nine is less than 18

Mathematics
1 answer:
Andre45 [30]3 years ago
7 0

Answer:

w < 9

Step-by-step explanation:

w + 9 < 18

To solve this inequality, we MUST get the w by itself

Subtraction Property of Equality  w + 9 - 9 < 18 - 9

Answer w < 9

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A car produces 53.9 tons of carbon dioxide over a 7 year period. Find its carbon footprint (tons of carbon dioxide per year).
Marina86 [1]

Answer:

carbon footprint

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Step-by-step explanation:

Given that,

carbon dioxide produced by a car over 7 year period = 53.5 tons

To find,

carbon footprint <em>(tons of carbon dioxide per year)</em>

7 years ------> 53.5 tons

1 year   -------> 53.9/7 tons

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4 years ago
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If KL = 8 and KM = 12, what is KN? Round your answer to the nearest tenth.
AVprozaik [17]

Answer:

it is 20

Step-by-step explanation:

12-8=4 so we add the 4 to the 12 and it gives us 16...then 16 rounded off to the nearest 10 is 20

7 0
3 years ago
-8x&gt;-64 solve the inequality <br> A. x&lt;8<br> B. x&gt;8<br> C. x&lt;-72<br> D. x&gt;72
saveliy_v [14]

Answer:

x<8

Step-by-step explanation:

divide each term by -8 and simplify

4 0
4 years ago
Write the equation of the line that passes through the points (-5, 21) and (4, -15) in standard form
saveliy_v [14]

Answer:

y = -4x + 1

Step-by-step explanation:

The line passes through points (-5,21) and (-4,15)

Slope(m) = change in y ÷ change in x

m = \frac{-15 - 21}{4 - -5}

m = \frac{-15 - 21}{4 + 5} = -36/9 = -4

Taking another point (x,y) on the line and comparing it with point (4,-15):

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Cross multiplying gives:

y + 15 = -4x + 16

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5 0
4 years ago
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