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2 years ago

Twice the difference of a number c and forty.

Mathematics

2 answers:

Varvara68 [4.7K]2 years ago

5 0

C=-4. Bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbjjjjjjnnnn

dybincka [34]2 years ago

4 0

Answer:

Equation ----> 2(c - 40)

c = -40

Step-by-step explanation:

2(c - 40)

= (2c) - (80)

= 2c - 80

= $\frac{2c}{2}$ + $(\frac{-80}{2})$

c = -40

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What is -x/3 = 9. Solve for x

vlada-n [284]

Note: I just noticed that you only have one negative sign. If you mean to put -9, change the sign to positive. If not, leave the answer.

Note the equal sign. what you do to one side, you do to the other. Isolate the x. First, multiply 3 to both sides

-x/3(3) = 9(3)

-x = 9(3)

-x = 27

Next, to isolate the x, divide -1 from both sides

-x/-1 = 27/-1

x = 27/-1

x = -27

-27 is your answer for x.

hope this helps

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3 years ago

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Please answer thxxxx

Llana [10]

B. 13

12^2 + 5^2 = c^2
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2 years ago

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Svetach [21]

Answer:

Step-by-step explanation:

Step 1: Convert into improper fractions

Step 2: Find least common denominator and find equivalent fractions

Step 3 : Do the required operation

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Least common denominator of 2 , 4 = 4

$=\frac{7*2}{2*2}+\frac{9}{4}-\frac{3*2}{2*2}\\\\=\frac{14}{4}+\frac{9}{4}-\frac{6}{4}\\\\=\frac{14+9-6}{4}\\\\=\frac{17}{4}\\\\=4\frac{1}{4}$

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2 years ago

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s2008m [1.1K]

Answer:

Step-by-step explanation:

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2 years ago

An architect is designing a building each floor will be 12 ft tall. Write an expression for the number of floors the building ca

Svet_ta [14]

Answer:

$\frac{h}{12}$

Where "h" is the height of the building.

Step-by-step explanation:

For this exercise it is important to read and analize carefully the information provided.

According to the data given in the exercise, the height of each floor the arquitect is designing is 12 feet.

You want to know the number of floors of 12 feet tall that building can have for a given building height.

Then, you can let "h" represents the height of the building. This will be the variable in the expression.

In order to find the number of those floors that the building can have for "h", you need divide this height by the height of each floor.

Therefore, you can determine that the expression asked in the exercise is the following:

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3 years ago

Twice the difference of a number c and forty.​

Twice the difference of a number c and forty.