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zalisa [80]
3 years ago
10

Simplify the linear expression below: (-9x + 7) + (-6x - 13)

Mathematics
1 answer:
julia-pushkina [17]3 years ago
8 0

Answer:

(-9x+7)+(-6x-13)= -15x + -6

Step-by-step explanation:

-9x+-6x = -15x

7+-13=-6

therefore, -15x+-6 = (-9x+7)+(-6x-13)

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To make five cups of lemonade you mix three cups of water with two cups of lemon juice. If there are sixteen cups in a gallon, h
zvonat [6]

Answer:

64 cups of lemon juice

Explanation:

First, you can determine with the information provided the amount of cups of lemon needed to prepare sixteen cups of lemonade:

5 cups of lemonade→2 cups of lemon juice

16 cups of lemonade→x

x=(16*2)/5=6.4 cups of lemon juice

Now, you now that for sixteen cups that is the amount in a gallon you need 6.4 cups of lemon juice and you can use a rule of three to determine the amount needed for ten gallons of lemonade:

1 gallon of lemonade→6.4 cups of lemon juice

10 galons of lemonade→x

x=(10*6.4)/1=64 cups of lemon juice

According to this, the answer is that 64 cups of lemon juice are needed to make ten gallons of lemonade.

7 0
3 years ago
The formula for the area of a circle is A =pie r 2. Classify the area of a circle with a radius of 0.75 centimeters as either ra
MA_775_DIABLO [31]
It is irrational.

A = π r^2 = π[3/4 cm]^2 = 9π/16 cm^2

An irrational number (Pi in this case) multiplied by a rational number (9/4) gives an irrational number.
4 0
3 years ago
Read 2 more answers
2x - 4 = -8 what is the value of x?
Brums [2.3K]

Answer:

x = -2

Step-by-step explanation:

2x = -8+4

2x = -4

x = -2

CHECK

-4 - 4 = -8

3 0
3 years ago
Where is the blue dot on the number line?
earnstyle [38]

<em>Answer:</em>

–6.8

<em>Method:</em>

Counting backwards from –7 to –6.5

5 0
2 years ago
Read 2 more answers
Find the inverse of the given relation.
il63 [147K]

Answer:

The answer is B.

Step-by-step explanation:

To obtain the inverse of a relation you simply interchange the x and y coordinates of each pair.

Here:

(3,1) becomes (1,3)

(3,1) becomes ((1,3)

(7, -7) becomes (-7,7) and

(12, -15) becomes (-15, 12)


6 0
3 years ago
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