1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dahasolnce [82]
3 years ago
12

Yana though of a number she multlipied it by 8 subtracted 4 divided the result by 2 what number did yana think of

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0

Complete Question

Yana though of a number she multiplied it by 8 subtracted 4 divided the result by 2, and got 30. What number did Yana think of

Answer:

x=8

Step-by-step explanation:

From the question we are told that:

Thought of Number x

Multiplied it by 8

 x*8=8x

Subtracted 4

 8x-4

Divided the result by 2

 \frac{8x-4}{2}

Generally the equation for x is mathematically given by

 \frac{8x-4}{2}=30

 8x-4=60

 8x=60+4

 x=8

You might be interested in
If a rectangular piece of metal has 27.75 square inches what is the length and width?
svp [43]

We cannot get further information about the dimensions of the piece since the number of variables is greater than the number of equations.

<h3>What are the dimensions of a rectangular piece of metal?</h3>

By geometry we know that the area of the piece of metal is equal to the product of its length and width, then we must find two <em>real</em> numbers such that:

l · w = 27.75, where l, w > 0.

Unfortunately, we cannot get further information about the dimensions of the piece since the number of variables is greater than the number of equations. We need at least one equation to find an <em>unique</em> solution.

To learn more on rectangles: brainly.com/question/15019502

#SPJ1

4 0
2 years ago
2. The sum of two numbers is 30. Determine the two numbers if their product is a maximum.
SCORPION-xisa [38]

Answer:

X+y=30

X=30-y

Z=yx

Z=y(30-y)

D/dy

z=30–2y

At max 30–2y=0

2y=30 Y=15

Therefore x=15

Step-by-step explanation:

5 0
3 years ago
Find the value of f(x) at the given value of x: f(x) = (x -4)(x + 3), x = 3​
mario62 [17]

Answer:

-6

Step-by-step explanation:

f(x)= (3- 4)(3+3)

=( -1 )(6)

= -6

7 0
2 years ago
Solve each of the following for the indicated variable.a. 9 − 6 = 54 for yb. = 2 + 2 for l
marta [7]

Answer:

\begin{gathered} y=\frac{9}{6}x-9 \\ l=\frac{P}{2}-w \end{gathered}

Step-by-step explanation:

To solve the following equations, we need to isolate the variable asked using inverse operations to solve equations.

Remember that addition and subtraction are inverse operations, as multiplication and division.

Therefore,

\begin{gathered} a\text{. Solve for y} \\ 6y=9x-54 \\ y=\frac{9}{6}x-\frac{54}{6} \\ y=\frac{9}{6}x-9 \end{gathered}\begin{gathered} b\text{. Solve for l} \\ P=2l+2w \\ 2l=P-2w \\ l=\frac{P}{2}-\frac{2}{2}w \\ l=\frac{P}{2}-w \end{gathered}

4 0
1 year ago
What is the reciprocal of 1 and 2/3?
mr_godi [17]

Answer: 3/5

Step-by-step explanation: To find the reciprocal of 1 and 2/3, we first need to convert 1 and 2/3 to an improper fraction.

To write a mixed number as an improper fraction, first multiply the denominator times the whole number, then add the numerator.

So here, we multiply the denominator, 3, times the whole number, 1, then we add the numerator. So we have (3 x 1) + 2 or 3 + 2 which is 5.

Now we put our new number over our old denominator and we get 5/3.

However, we're not done yet. We still need to find the reciprocal.

The reciprocal describes a fraction so when we're asked to find the reciprocal of 5/3, we want to switch the numerator and denominator.

So if we switch 5/3, we get the proper fraction 3/5.

Therefore, the mixed number 1 and 2/3 is equivalent to the improper fraction 5/3, and if we switch the top and bottom numbers, we get 3/5.

7 0
3 years ago
Other questions:
  • 18 lb3 oz + 25 lb5 oz
    5·1 answer
  • Select all the equations where n=6n=6n, equals, 6 is a solution.
    13·1 answer
  • A gallary owner purchased a very old painting for $3,000. The painting sells at a 325% increase in price. What is the retail pri
    5·1 answer
  • 1. In quantum physics what is entanglement ?
    15·1 answer
  • Help with math problem
    11·1 answer
  • Y and x have a proportional relationship, and y = 24 when x = 16.
    14·2 answers
  • Which shows the number 54 factored into prime numbers?
    13·2 answers
  • How can you use the pythagorean theorem to solve real-world problems
    7·2 answers
  • I WILL MARK YOU BRAINLIEST!!
    5·2 answers
  • Write 0.00000711 in scientific notation.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!