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3 years ago

What is the value of x?

Mathematics

2 answers:

Taya2010 [7]3 years ago

8 0

mean a value that is not yet known.

It is called a "variable" or sometimes an "unknown".

In x + 2 = 7, x is a variable, but we can work out its value if we try!

A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

See: Variable

Introduction to Algebra

PilotLPTM [1.2K]3 years ago

3 0

Answer:

360=2(x+30)+2x

360=2x+60+2x

300=4x

x=75

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$10,000 at an annual rate of 7%, compounded semi-annually, for 2 years

forsale [732]

Answer:

$\$13,107.96$

Step-by-step explanation:

Since interest is compounded semi-annually (half a year or 6 months), in a spawn of 2 years, the interest will have been compounded 4 times. As given in the problem, each time the interest is compounded, the new balance will be 107% or 1.07 times the amount of the old balance.

Therefore, we can set up the following equation to find the new balance after 2 years:

$\text{New balanace}=10,000\text{ (old balance)}\cdot 1.07\cdot 1.07\cdot 1.07\cdot 1.07,\\\text{New balanace}=10,000\cdot 1.07^4=\boxed{\$13,107.96}$

8 0

2 years ago

What ate all the numbers that round to 240

kramer

248 243 247 246 245 249

5 0

3 years ago

Which decimal number is the smallest 1.001 1.1 1.01 1.011

ddd [48]

1.001 is the smallest :)))

3 0

3 years ago

Solve the system if equations: 3x+y+3z=4 <br> 4x-y+2x=5 <br> X-2y-z=0

Ugo [173]

Answer:

The answer is in step-by-step explanation

Step-by-step explanation:

3 x + y + 3 z = 4

4 x - y + 2 z = 5

x - 2 y - z = 0

4 0

2 years ago

I need help its not 4236

Oduvanchick [21]

Answer: 4236

Step-by-step explanation: I used a calculator. If it's wrong, tell your teacher/instructor.

7 0

2 years ago