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
chubhunter [2.5K]
3 years ago
7

The product of five and a number, increased by 9 is equal to fifteen less than three times then

Mathematics
1 answer:
bonufazy [111]3 years ago
8 0

Answer:

x = -12

Step-by-step explanation:

Let x be the number.

The product of 5 and x increased by 9 is equal to 15 less than 3 times x.

5x + 9 = 3x - 15.

We can isolate x, getting (5-3)x = -15-9

Then we can solve:

2x = -24

x = -12.

You might be interested in
Help please...
stealth61 [152]

Answer:

1) 80%  2)25%

Step-by-step explanation:

1)80% of $2.50 = $4.50

2)25% of $9 = $2.25

  9 - 2.25 = $6.75

7 0
3 years ago
Math help plss !! uwu im stuck.
Alexxx [7]

Step-by-step explanation:

1) The four points are:

(x₁, y₁) = (-2, -1)

(x₂, y₂) = (3, 13)

(x₃, y₃) = (15, 5)

(x₄, y₄) = (13, -11)

Using the distanced formula the four side lengths are:

d₁₂ = √((13−-1)² + (3−-2)²) = √221

d₂₃ = √((5−13)² + (15−3)²) = √208

d₃₄ = √((-11−5)² + (13−15)²) = √260

d₄₁ = √((-1−-11)² + (-2−13)²) = √325

None of the lengths are equal, so we know this isn't a rhombus, parallelogram, or kite.  Is it a trapezoid?  To find out, let's find the slopes between the two lines that look like they might be parallel.

m₂₃ = (5 - 13) / (15 - 3) = -2/3

m₄₁ = (-1−-11) / (-2−13) = -2/3

They are indeed parallel.  So this is a trapezoid.

2) Given:

PS ≅ QR

m∠P + m∠Q = 180

m∠R + m∠S = 180

∠P ≅ ∠S

By converse of Alternate Interior Angles Theorem, since ∠P and ∠Q are supplementary, line PS and QR must be parallel.

If a quadrilateral has one pair of opposite sides that are both parallel and congruent, then it is a parallelogram.

Adjacent angles of a parallelogram are supplementary, so m∠P + m∠S = 180.

Since ∠P ≅ ∠S, then by definition of congruent angles, m∠P = m∠S.

Substitution:

m∠P + m∠P = 180

m∠P = 90

Substitution:

m∠S = 90

Opposite angles of a parallelogram are congruent, so m∠Q = m∠S = 90 and m∠R = m∠P = 90.

A parallelogram with four right angles is a rectangle.

6 0
3 years ago
Graph linear equation -3y=2x-7
Keith_Richards [23]

Answer:

Find the attached

Step-by-step explanation:

We are given the following linear equation;

-3y = 2x - 7

In order to graph it, we need to determine at least 3 pairs of points that lie on the line;

we first solve for y by dividing both sides of the equation by -3;

y = (-2/3)x + 7/3

let x be 3;

y = (-2/3)*3 + 7/3

y = 1/3

(3, 1/3)

let x be 6;

y = (-2/3)*6 + 7/3

y = -5/3

(6, -5/3)

let x be 9;

y = (-2/3)*9 + 7/3

y = -11/3

(9, -11/3)

Using the three set of points we graph our linear function. Find the attached;

3 0
4 years ago
How many times does 5 go into 625
SIZIF [17.4K]

Athnswer:

Step-by-step explanation:

The number of times is = 625/5

= 125

4 0
3 years ago
Read 2 more answers
Please help, math question.
Veseljchak [2.6K]
Part a) 
Identify the variable and categories


By reading the above statement, we can find that there are two variables and each variable has 2 categories. The variables and their categories are:
1) Class Number
This variable is further divided into 2 categories i.e. Class 9th and Class 10th.

2) Participation in Extracurricular activities
This variable is further divided into 2 categories based on if students participated or not.

Part b)
Set up and fill 2 way table.

Since, we have 2 variables and each variable has 2 categories the number of data cells will be 2 x 2 = 4 cells

There are total 100 students. 40 students are in class 10th. This means 60 students are in class 9th.Out of 40 students in class 10th, 18 students participate in at least one extracurricular activity. So remaining 22 students do not participate. 32 students from class 9th participate in extracurricular activities, this means the remaining 28 students do not participate. Based on this data, we can fill up the table as shown below
 

6 0
3 years ago
Other questions:
  • Which transformations can be used to carry ABCD onto itself? The point of rotation is (3, 2). Check all that apply.
    6·1 answer
  • Simplify the equation using addition or subtraction formula. <br> sin θ cos 3θ + cos θ sin 3θ = 0
    5·2 answers
  • Square root of 368 simplified?
    14·1 answer
  • Brainly What is the fraction in simplest form? 14/16
    12·1 answer
  • Please help :( best explanation i give brainliest :)
    10·2 answers
  • An observer found the measure of the angle from the ground to the top of a building from two different locations shown.
    7·1 answer
  • In chemistry, n molecules of an ideal gas have pressure (P), volume (V), and temperature (T) that stand in the following relatio
    10·1 answer
  • The Central High School students voted to select a school mascot. The results
    14·1 answer
  • What is the domain of the absolute value function below?
    11·1 answer
  • Kim read 3/4 of her book over the weekend. What is 3/4 written as a sum of unit fractions with a denominator of 12?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!