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PilotLPTM [1.2K]
3 years ago
10

Find the area of the figure below. Round to the nearest tenth.

Mathematics
1 answer:
leva [86]3 years ago
4 0
6x9 + 3^2pi would be the area so 54+9pi=57.14
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The cost of 3 notebooks and 4 pencils is $8.50. Determine the cost of one notebook and one pencil
Assoli18 [71]
Call the notebooks x, and the pencils y. 
<span>3x + 4y = $8.50 and 5x + 8y = $14.50 </span>
<span>Then just solve as simultaneous equations: </span>
<span>3x + 4y = $8.50 </span>
<span>5x + 8y = $14.50 </span>

<span>5(3x + 4y = 8.5) </span>
<span>3(5x + 8y = 14.5) </span>

<span>15x + 20y = 42.5 </span>
<span>15x + 24y = 43.5 </span>

<span>Think: DASS (Different Add, Similar Subtract). 15x appears in both equations so subtract one equation from the other. Eassier to subtract (15x + 20y = 42.5) from (15x + 24y = 43.5) </span>

<span>(15x + 24y = 43.5) - (15x + 20y = 42.5) = (4y = 1) which means y = 0.25. </span>

<span>Then substitue into equation : </span>
<span>15x + 20y = 42.5 </span>
<span>15x + 5 + 42.5 </span>
<span>15x = 42.5 - 5 = 37.5 </span>
<span>15x = 37.5 </span>
<span>x = 2.5 </span>

<span>15x + 24y = 43.5 </span>
<span>15(2.5) + 24(0.25) </span>
<span>37.5 + 6 = 43.5 </span>

<span>So x (notebooks) are 2.5 ($2.50) each and y (pencils) are 0.25 ($0.25) each.</span>
6 0
2 years ago
If X plus 5 equals 8, then what is X?​
katrin [286]

Answer:

X  plus 5 equals 8, then whats is X. The answer would be X = 3

Step-by-step explanation: Hope it helps

4 0
3 years ago
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HELPPP <br> 8g + 25 = 97<br> Solve for G
RoseWind [281]

Answer: 120 g

Step-by-step explanation:

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If caviar costs $23.44 a pound, then how much is a quarter of a pound?
saul85 [17]

Question

if caviar costs $23.44 a pound, then how much is a quarter of a pound?

Answer:

Hi, There! Frozen is Here to help :)

$5.86 is A Quarter of a pound Is the Correct Answer

Hope this Helps!

*FrozenVines*

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Eight less than the quotient of x and 3
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y=x3−8

Step-by-step explanation:

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