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
il63 [147K]
4 years ago
7

How are the expressions 8-15 and 8-(-15)?how are they different?

Mathematics
1 answer:
zmey [24]4 years ago
6 0

8 - 15 means subtract the positive number 15 from 8.

8 - 15 = 8 + (-15) = -7

8 - (-15) means subtract the negative number -15 from 8.

Subtracting a negative number is the same as adding a positive number.

8 - (-15) = 8 + 15 = 23

8 - 15 = -7, and 8 - (-15) = 23. The expressions mean different operations and have different answers.

You might be interested in
Is 74 inches greater or less than 2 yards 2 inches?
Effectus [21]
They are equivalent:
<em>74 inches=74 inches</em>
<em>2 yards, 2 inches= 74 inches
</em>
2 yards>6 feet>72 inches+2 inches>74 inches
OR
1 yard=36 inches>2 yards=72 inches+2 inches>74 inches

<em>Hope this helps!</em>
8 0
3 years ago
Read 2 more answers
48 ÷ [(13 – 6) — 6°] + 4 - 2 =​
kvasek [131]

Answer:

brainlest plzzzzzz 50

Step-by-step explanation:

pemdas

so u you do brackets first

13-6=7

7-6=1

next you do multiplication and division

48/1=48

next is addition and subtraction

48+4=52

52-2=50

so you awnswer is 50

6 0
3 years ago
Y=-5x+6<br> y=3x-2<br><br> Find the solution to the system of equations.
Kobotan [32]

Answer:

(1, 1 )

Step-by-step explanation:

Given the 2 equations

y = - 5x + 6 → (1)

y = 3x - 2 → (2)

Since both equations express y in terms of x, equate the right sides

3x - 2 = - 5x + 6 ( add 5x to both sides )

8x - 2 = 6 ( add 2 to both sides )

8x = 8 ( divide both sides by 8 )

x = 1

Substitute x = 1 into either of the 2 equations for corresponding value of y

Substituting x = 1 in (2)

y = 3(1) - 2 = 3 - 2 = 1

Solution is (1, 1 )

4 0
3 years ago
Read 2 more answers
To make a solution for an experiment, Gunther needs to add 40 g of a solute to 100 g of water. When making the
Tems11 [23]

Answer:

B. Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If you are given the length of a hypotenuse and the length of an adjacent side, what
Evgen [1.6K]

Answer:

cosine

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Brian irons 2/9 of his his shirt in 3 3/5 Brian irons at a constant rate at this rate hou much of his shirt is ironed each minut
    12·1 answer
  • Isabel is 11 years old. This is 3 years more than twice her brother's age. How old is Isabel's brother? Let b = Isabel's brother
    6·2 answers
  • What is the median for the following set of data? 2, 3, 6, 8, 9, 10, 11 7 8 10 11
    9·1 answer
  • Which words correctly complete the statement below?Syntax error from line 1 column 49 to line 1 column 73. Unexpected 'mathsize'
    7·1 answer
  • Write an absolute value equation that has the given solution: 7
    6·2 answers
  • Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. A caterer is making
    11·1 answer
  • Clare made an error when solving -4x + 3 &lt; 23
    15·1 answer
  • The measures of the angles of a triangle are shown below .solve for x ​
    14·1 answer
  • Simplify 5 − (−1). (1 point)
    14·1 answer
  • Write an<br> explicit formula for an, the nth term of the sequence 24, 28, 32, ....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!