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mariarad [96]
3 years ago
8

1. 8 x (-7)

Mathematics
1 answer:
iogann1982 [59]3 years ago
5 0
Is x a variable in these problems or is x acting as a multiplication sign?
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Oceanside Bike Rental Shop charges 12 dollars plus 7 dollars an hour for renting a bike. Sandy paid 40
alexgriva [62]

x = # of hours the bike was rented.

$40 = $12 + $7x

Subtract $12 from both sides.

$28 = $7x

Divide both sides by $7

4 = x

Sandy rented the bike for 4 hours.

8 0
3 years ago
Daniel is a famous music composer and he composed 8 songs last month. This month he composed 10 songs. What was the percent incr
Musya8 [376]

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The selection was made by a 10-strong jury instead of the former public vote, which ... a capacity of 12 musicians ;ind is equipped with a Scully 8-track tape recorder ... a $6 million turnover in 1972. a 40 percent increase on figures

Step-by-step explanation:

3 0
3 years ago
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If someone can please answer the question in the picture thatd be great
Ann [662]

Answer:

≈ 20.8 ft

Step-by-step explanation:

A right triangle is formed between the wall, the ground and the ladder.

The ladder is the hypotenuse , the wall and ground are the legs.

let h be the height of the wall, then using Pythagoras' identity

h² + 33² = 39²

h² + 1089 = 1521 ( subtract 1089 from both sides )

h² = 432 ( take the square root of both sides )

h = \sqrt{432} ≈ 20.8 ft ( to the nearest tenth )

5 0
3 years ago
At the moment a certain medicine is injected, it’s concentration in the bloodstream is 120 milligrams per liter. From that momen
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C(t)=120(0.7)^t

Step-by-step explanation:

4 0
3 years ago
Did i do this right?​
Amanda [17]

Answer:

yes

Step-by-step explanation:

3 0
2 years ago
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