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3 years ago

Solve the inequality (2x-4) + 110 ≤ 120

Mathematics

1 answer:

miskamm [114]3 years ago

8 0

Answer:

x ≤ 7

Step-by-step explanation:

(2x-4) + 110 ≤ 120

Combine like terms

2x +106 ≤ 120

Subtract 106 from each side

2x+106 -106 ≤ 120-106

2x ≤ 14

Divide each side by 2

2x/2 ≤ 14/2

x ≤ 7

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Answer:

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Step-by-step explanation:

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a motorist starts from O nd moves in a direction 030° for 36km.he then moves 7km towards the west .how far east his he now from

gavmur [86]

Answer:

11 km

Step-by-step explanation:

Assuming your "direction 030°" is a bearing measured clockwise from north, the amount the motorist moved east on the first leg of the journey was ...

(36 km)sin(30°) = 18 km

From that point, moving 7 km west makes his easterly position ...

18 km -7 km = 11 km . . . . east of O

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The sine of an angle is the ratio of the side opposite to the hypotenuse. You can find the length of the side opposite (the easterly motion) by multiplying the sine of the bearing angle by the distance of travel. A diagram can help.

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