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kozerog [31]
3 years ago
15

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!I will give brainliest !!!!!!!!!!!!!!Sam knows he will be waiting at least 80 minuets in line

to get into a concert . He decides to bring some magazines to read. He knows it takes 20 minuets to read 1 magazine. Write and solve an inequality to determine how many magazines Sam needs to bring with him. Discuss the meaning of your solution.
Mathematics
2 answers:
sergiy2304 [10]3 years ago
6 0

Answer:

4

Step-by-step explanation:

20 x 4 = 80

so 1 per 20 minuets,and 4, 20 min. magazines would mean he needs 4 to make it to 80

e-lub [12.9K]3 years ago
3 0

80=m*20          m=4

Step-by-step explanation:

First divide 80/20=4, so he needs to bring 4 magazines. Now, just put the inequality together, use m=magazines. So, 80=m*20 when m=4

hope this helps :)

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8 0
3 years ago
I don’t know how to label the sides as “opposite, adjacent, hypotenuse” so I’m not sure which formula to use
ivanzaharov [21]

Step-by-step explanation:

The opposite side is the side of the triangle facing the given angle. The adjacent side is the side that the given angle and the right angle lies on. The hypotenuse side is the side facing the right angle. (The hypotenuse side usually looks like a slanted line. Do note that this is not true if your adjacent and hypotenuse side is not horizontal and vertical respectively on the plane of your paper.)

I'll explain a bit more below using the some of the questions.

Q1) The given angle here is 27°.

X is facing the given angle hence it is the opposite side.

The side that is 10 units long is the adjacent side as 27° and the right angle sits on it.

tanθ= opp/adj

tan27°= x/ 10

x= 10(tan 27°)

x= 5.1 units (nearest tenth)

Q3) x is the adjacent side, while the side that is 7 units long is the hypotenuse side.

cosθ= adj/hyp

cos39°= x/7

x= 7(cos39°)

x= 5.4 units (nearest tenth)

Q4) x is the hypotenuse and the opposite side is 8 units long.

sinθ= opp/hyp

sin46°= 8/x

x(sin46°)= 8

x= 8/ sin46°

x= 11.1 units (nearest tenth)

Q5) x is facing the given angle, hence it is the opposite side. The adjacent side is given here, which is 6 units long.

tanθ= opp/adj

tan23°= x/6

x= 6(tan 23°)

x= 2.5 units (nearest tenth)

Feel free to ask if you still do not understand any concepts :)

sinθ= opp/hyp

cosθ= adj/hyp

tanθ= opp/adj

3 0
3 years ago
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