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Anettt [7]
1 year ago
11

Can someone help me please , this geometry

Mathematics
1 answer:
sashaice [31]1 year ago
5 0

Answer:

x = HJ/5 + 3/5

HJ = 5x - 3 = 5 (11) - 3 = 55 - 3 = 52

JK = 8x - 9 = 8(11) - 9 = 88 - 9 = 79

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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

Given:

  • 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

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⇒ w = 75.7 - 4(15.8)

⇒ w = 75.7 - 63.2

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Therefore, one widget costs $12.50

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