Mathematics, 11.01.2021 04:00 ciaotaylor

Solve

thanks and give how you done it too

Solve
thanks and give how you done it too

Answers: 2

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Answers

Answer from: DJEMPGYT

x = 4

Step-by-step explanation:

7x + 16/11 = 4

11 x 7x + 16/11 = 4 x 11

7x + 16 = 44

7x + 16 - 16 = 44 - 16

7x = 28

7x/7 = 28/7

x = 4

Check:

7x + 16/11 = 4

7(4) + 16/11 = 4

28 + 16/11 = 4

44/11 = 4

4 = 4 (note that this number is not the answer, just to check if each side is balanced, the actual answer is 4)

Bam !

Hope this helps ^w^

Answer from: murtaghliam1

x = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{7x + 16}{11} = 4$

Step 2: Solve for x

Multiply 11 on both sides: $\displaystyle 7x + 16 = 44$ Subtract 16 on both sides: $\displaystyle 7x = 28$ Divide 7 on both sides: $\displaystyle x = 4$

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: $\displaystyle \frac{7(4) + 16}{11} = 4$ [Frac] Multiply: $\displaystyle \frac{28 + 16}{11} = 4$ [Frac] Add: $\displaystyle \frac{44}{11} = 4$ [Frac] Divide: $\displaystyle 4 = 4$

Here we see that 4 does indeed equal 4.

∴ x = 4 is the solution to the equation.

Answer from: Quest

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

Answer from: Quest

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour = $(1/1000)/(1/3600)=3600/1000=18/5=3.6 kilometer/hour$

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second= $15*3.6=54 kilometer/hour$ which is the required answer.

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