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
Westkost [7]
3 years ago
13

What is the value of the expression? (-20)+(-10)+15

Mathematics
2 answers:
vesna_86 [32]3 years ago
7 0
The answer is -15 because -20 plus -10 is -15 and -30 plus 15 is -15
Mkey [24]3 years ago
3 0
Basically, you just do what comes first since just only the operation of addition. NOTE: This is important to remember! You read equations left from right.

1. -20 + -10 = -30
2. -30 + 15 = -15.

Your answer is -15!

You might be interested in
-2x^2 + 4x + 16 in vertex form​
Reil [10]

Answer:

y = - 2(x - 1)² + 18

Step-by-step explanation:

- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms

= - 2(x² - 2x) + 16

using the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² - 2x

= - 2(x² + 2(- 1)x + 1 - 1) + 16

= - 2(x - 1)² + 2 + 16

= - 2(x - 1)² + 18 ← in vertex form

6 0
2 years ago
50 POINTS UNLESS THE PHOTO DIDNT WORK, BUT PLEASE HELP.
Scrat [10]

Answer:

The picture doesn't work but tell me in the comments what it is and i will gladly help you out. Please mark me the brainliest answer?

<3 Hoped this helped!!!! Have a good day!!! :D

8 0
3 years ago
Read 2 more answers
please help!! Drag each pair of equations to show whether the system has no solution, one solution, or infinitely many solutions
Vanyuwa [196]

For the given system of equations, considering different systems are split by ;, we have that:

  • No solutions: 3y = x + 2, 9y = 3x + 7; y = 2x + 3, y = 2x + 5
  • One solution: 2y = 3x, -5y = -10x,; x = 6, y = 9.
  • Infinitely many solutions: y = 5x + 2, 3y = 15x + 6.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

It's equations can be written in the format:

Ax = b

Using the above format, we have that:

  • If A is different from zero, the system has one solution.
  • If A is zero and B is different of zero, the system has no solutions.
  • If both are zero, the system has infinite solutions.

At the first system, multiplying the first equation by -3 and adding with the second, we end up with:

0y = 0x + 2

0 = -2

Which is a false statement, hence it has no solutions.

At the second system, the equations are multiples, hence it has infinite solutions.

At the third system, the coefficients are not zero and are not multiples, and it has one solution.

In the fourth system, the one solution is already given.

At the fifth system, we have that:

2x + 3 = 2x + 5

0x = 2

Hence no solutions.

To learn more about system of equations, you can take a look at brainly.com/question/24342899

5 0
2 years ago
What was the depth of the submarine after 6 minutes
pishuonlain [190]
-120 + 13m, at time m = 6, would be -120 + 78, or -42 feet.
3 0
3 years ago
What number do u divide with 11 to get the answer 17
Reika [66]
17x11=187                                              need more character there done
6 0
3 years ago
Read 2 more answers
Other questions:
  • A basketball player gets 2 free-throw shots when she is fouled by a player on the opposing team. She misses the first shot 40% o
    12·2 answers
  • A bookstore costs $90 a day to keep open, and it spends $13 for each book-
    15·1 answer
  • Which answer is same as 5.32×10^5
    12·1 answer
  • Twelve more than 3 times a number is more than the opposite of 11
    11·2 answers
  • 9.The following set represents a set of rational numbers: {12.6,11/15,___,0} which could be the missing value in the set?
    10·1 answer
  • Please help asap 40 pts
    10·2 answers
  • In the formula C = 2.1, C stands for
    7·1 answer
  • X²+y²-6x+14y-1=0<br> and please show your work so I can learn
    11·1 answer
  • Pls help I have this homework !! bye I will mark you the best or brainliest!!
    8·2 answers
  • Select all the correct answers.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!