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muminat
3 years ago
11

Please help me slove this problem 3x - 3 = 12

Mathematics
2 answers:
allsm [11]3 years ago
8 0
The answer is 5! Hope this helps!
Tju [1.3M]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

We kind of have to work backward.

First, we take 12+3 because when we move it over the equal sign, we make it the opposite.

12+3=15

Our new equation is now, 3x=15

We now take:

3x__=15

The blank represents x, which is 5.

Hope this helps!

-AxekickNebulite

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A boat drops an anchor 75 feet to the bottom of a lake. A sunken treasure chest lies at the bottom of the lake, 40 feet away fro
Reil [10]
Given
Height (length) of the anchor dropped from the boat = 75 feet
Distance of the treasure from the anchor = 40 feet

Solution
The dropped at the bottom makes an angle of 90 degree . Therefore making an right triangle with the chest and boat

By Pythagoras theorem
AC^2 = AB^2 + BC^2

(AC = distance of the treasure from the boat
AB = height of the anchor dropped from the boat
BC = the distance of treasure from the anchor)

AC^2 = 75^2 + 40^2
AC^2 = 5325 +1600
AC^2 = 6925
AC = 25 * (under root 11)

Therefore they have cover a distance of 25 * (under root 11)
5 0
3 years ago
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3 years ago
Harmony earns a $42,000 salary in the first year of her career. Each year, she gets a 4%, percent raise.
marysya [2.9K]

Answer:

42000*1.04^(n-1)

Step-by-step explanation:

4% is equal to 0.04, a raise is 1+0.04=1.04

1.04 is now the number we are multiplying by to get a new yearly salary for Harmony.

42000*1.04^(n-1) since n is how many years after she has the job you have to raise it to the power and subtract one.

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2 years ago
What is the last operation to be performed when finding the value of this expression?
MArishka [77]

To find out the last operation, we must solve the entire problem.

We are given:

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Let's simplify the signs so they don't clutter our equation.

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We always need to be sure to use PEMDAS. Since there is no expression to solve in parenthesis and no exponents are present, we will move on to multiplication. We can multiply -9 and -6 in the denominator. When we do that, we get:

\frac{5-8}{-3+54}

Next, all you need to do is combine like terms in the numerator and the denominator.

\frac{-3}{51}

Simplify.

-\frac{1}{17}

To answer the question, the last operation to be performed when finding the value would be division.

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3 years ago
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vovangra [49]
A. $5.95 is the answer
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