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soldier1979 [14.2K]
3 years ago
8

98 POINTS ONE GEOMETRY QUESTION PLEASE ANSWER!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
elena55 [62]3 years ago
4 0
1,333.166 square meters is the surface area.
Hatshy [7]3 years ago
4 0
Formula
Surface Area (SA) = 4 * pi * r^2

Givens
SA = ??
pi = 3.14
r= d/2
r = 20.6/2 = 10.3 

Sub and Solve
SA = 4 * 3.14 * (10.3)^2
SA = 12.56 * 106.09
SA = 1132.50 m^2 <<<<<<< Answer
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Answer:

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Step-by-step explanation:

3z - 7 = 14

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Five widgets and three gadgets cost $109. 90.
erma4kov [3.2K]

Answer:

one gadget costs $15.80

Step-by-step explanation:

Let w = cost of one widget

Let g = cost of one gadget

Given:

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⇒ 5w + 3g = 109.9

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  • One widget and four gadgets cost $75. 70

⇒ w + 4g = 75.7

Rewrite  w + 4g = 75.7  to make w the subject:

⇒ w = 75.7 - 4g

Substitute into  5w + 3g = 109.9  and solve for g:

⇒ 5(75.7 - 4g) + 3g = 109.9

⇒ 378.5 - 20g + 3g = 109.9

⇒ 378.5 - 109.9 = 20g - 3g

⇒ 268.6 = 17g

⇒ g = 15.8

Therefore, one gadget costs $15.80

To find the cost of one widget, substitute the found value for g into
w = 75.7 - 4g and solve for w:

⇒ w = 75.7 - 4(15.8)

⇒ w = 75.7 - 63.2

⇒ w = 12.5

Therefore, one widget costs $12.50

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2 years ago
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