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Paul [167]
3 years ago
12

Add. Use models if needed. (-3x - 7) + (4x + 7)

Mathematics
2 answers:
Lunna [17]3 years ago
7 0

-3x-7+4x+7

Negative -7 and positive 7 will give you 0.

So we're left with x. Therefore, the answer is x.

iragen [17]3 years ago
4 0
(-3x-7)+(4x+7) = -3x-7+4x+7 = -3x+4x = x
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Adrian is a songwriter who collects royalties on his songs whenever they are played in a commercial or movie. Adrian will earn $
gayaneshka [121]

Answer:

Adrian's songs played on 9 commercials and 5 movies.

Step-by-step explanation:

Let x denotes number of commercials and y denotes number of movies.

Total number of commercials and movies = 14

So,

x+y=14\\x=14-y\,\,\,\,...(i)

Adrian will earn $40 every time one of his songs is played in a commercial and he will earn $130 every time one of his songs is played in a movie

Total amount earned = $1010

40x+130y=1010\,\,\,...(ii)

Put x=14-y in (ii)

40(14-y)+130y=1010\\560-40y+130y=1010\\90y=1010-560\\90y=450\\y=\frac{450}{90}=5

Put y=5 in x=14-y

x=14-5=9

Therefore, Adrian's songs played on 9 commercials and 5 movies.

7 0
3 years ago
A bag of 100 tulip bulbs purchased from a nursery contains 40 red tulip​ bulbs, 20 yellow tulip​ bulbs, and 40 purple tulip bulb
deff fn [24]

A) 40 out of 100 are red.

The probability would be 40/100, which reduces to 2/5

B) 40 out of the 100 are purple.

 The probability would be 40/100, which reduces to 2/5

C) the two probabilities are the same.

7 0
3 years ago
(4x3 + 3x2 - 30x - 10) ÷ (x -3)
pogonyaev
(12x+6x-30x-10)/(x-3)=
=(-12x-10)/(x-3)
=-12x*+36- 10x+30=
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5 0
3 years ago
A juice container can hold 96 ounces. The container has 72 ounces of juice. What percentage is not in the container.
Ede4ka [16]

Answer:

25% of the juice is not in the container.

Step-by-step explanation:

We are given the following in the question:

Total juice container can hold = 96 ounces

Amount of juice in container = 72 ounces

Amount of juice not in container =

96-72=24\text{ ounces}

We have to find the percentage of juice not in the container.

Percentage =

=\dfrac{\text{Amount of juice not in container}}{\text{Total amount the container can hold}}\times 100\5\\\\=\dfrac{24}{96}\times 100\%\\\\=25\%

Thus, 25% of the juice is not in the container.

8 0
3 years ago
Which subsets of numbers does 1 2/3 belong to?
lana [24]
<h2>Answer:</h2>

<u>- Real and rational number</u>.

<h2>Step-by-step explanation:</h2>

<em>It's a rational number because it can be represented by the integer of integer numbers. It's also a real number because rational numbers belong to the real set of numbers and the number doesn't contain an imaginary component (i).</em>

<em />

<em>It's not a natural or whole number because it can't be used to count or order things.</em>

<em>It's not an integer because it can't eb written without using a fractional component.</em>

<em />

7 0
1 year ago
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