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
cestrela7 [59]
3 years ago
12

Simplify by combining like terms: -7x - 2 - 9y + 10x ​

Mathematics
1 answer:
Marianna [84]3 years ago
5 0
-2 + 3x + -9y should be your answer hope this helps!
You might be interested in
se necesita llenar un galon de agua,en 2 litros se tarda 30 minutos.cuantos litros me hacen falta para completar el galon y cual
mariarad [96]

Answer: 1.78 L are needed to complete the gallon and it will take 29.66 min to completely fill it

Step-by-step explanation:

The question in english is:

A gallon of water needs to be filled, in 2 liters it takes 30 minutes. How many liters do I need to complete the gallon and what is the time it takes me to fill it?

We know 1 gallon is equal to 3.78 liters:

1 gal=3.78 L

In addition, we are told you have filled the gallon with 2 L at a rate of \frac{2 L}{30 min}=0.06 L/min.

So, if we want to know how many liters are left to completely fill the gallon, we have to sbstract the 2 L to the total amount of a gallon:

3.78 L-2 L=1.78 L This is the amount you need to complete the gallon

On the other hand, the rate is defined as:

rate=\frac{Liters}{time}

Isolating time:

time=\frac{Liters}{rate}

Then, if we input the 1.78 L we need to fill the gallon we will have the time:

time=\frac{1.78 L}{0.06 L/min}

time=29.66 min This is the time you need to fill the gallon

6 0
3 years ago
What is the length of ab and bc ? a= (1,-3) b= (3,-1) C= (5,-3)
ddd [48]

Answer:

the length is (1,3

Step-by-step explanation:

the length is 3,1

5 0
3 years ago
Totsakan enlarged the size of a photo to a
Dimas [21]
The width of the enlarged photo is 9 inches.

Given: 
Original length = 2 inches
Original width = 1 inch
Extended length = 18 inches
Extended width = ?

2:1 = 18:x
2x = 1*18
2x = 18
2x/2 = 18/2
x = 9   * extended width.

to check:
2:1 = 18:9
2*9 = 1*18
18 = 18
6 0
3 years ago
Question 22 A city has a population of people. Suppose that each year the population grows by . What will the population be afte
Alexeev081 [22]

Answer:

911,690.

Step-by-step explanation:

Please consider the complete question.

A city has a population of 390,000 people. Suppose that each year the population grows by 6.75%. What will the population be after 13 years? Round your answer the nearest whole number.

We will use exponential growth formula to solve our given problem.

y=a\cdot (1+r)^x, where,

y = Final value,

a = Initial value,

r = Growth rate in decimal form,

6.75\%=\frac{6.75}{100}=0.0675

y=390,000\cdot (1+0.0675)^x

y=390,000\cdot (1.0675)^x

To find the population after 13 years, we will substitute x=13 in population growth equation as:

y=390,000\cdot (1.0675)^{13}

y=390,000\cdot 2.3376661492982871

y=911689.798226331969

Upon rounding to nearest whole number, we will get:

y\approx 911,690

Therefore, the population of the city after 13 years would be 911,690.

8 0
3 years ago
Marian borrowed money to buy a sound system that costs $450. She is charged 5% simple interest for one year what is the total am
yarga [219]

Marian will pay $472.50 for the sound system if she pays the full amount in one year.

Step-by-step explanation:

Given,

Money borrowed for sound system = $450

Interest rate = 5%

Amount of interest = 5% of money borrowed

Amount of interest = \frac{5}{100}*450

Amount\ of\ interest=\frac{2250}{100}\\\\Amount\ of\ interest=\$22.50

If she pays the amount in one year;

Total amount to be paid = Money borrowed + Amount of interest

Total amount to be paid = $450 + $22.50 = $472.50

Marian will pay $472.50 for the sound system if she pays the full amount in one year.

Keywords: interest, addition

Learn more about addition at:

  • brainly.com/question/10708697
  • brainly.com/question/10710410

#LearnwithBrainly

5 0
3 years ago
Read 2 more answers
Other questions:
  • Twelve athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be given to the second-place
    5·1 answer
  • A rectangle measures 3 3/ 4 inches by 2 1/ 2 inches. What is its area?<br> WILL MARK BRAINLIEST
    8·1 answer
  • ana wants to earn 88 percent in her chemistry class she has one quiz left to take on the first 5 quizzes she received a 74 perce
    14·1 answer
  • Practice worksheet : relations and functions
    8·2 answers
  • What is the measure of degrees 1/8
    8·1 answer
  • Barbara worked 30 hours last week. She
    8·1 answer
  • Help pretty pretty please !!❤️
    14·1 answer
  • DOES ANYONE KNOW THIS?
    10·1 answer
  • 5 raised by 2- 5 (68-60)= <br> (with explanation plz)
    6·1 answer
  • Determine whether x=3, x=4, or x=5 is the solution. 20x=4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!