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
bija089 [108]
3 years ago
8

Please help!! 20 points (-78) + 69 =

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

-9

Step-by-step explanation:

Since the signs are different, subtract the two numbers and take the sign of the larger number

78 - 69

9

Since 78 is the larger number and it was negative

-9

dimaraw [331]3 years ago
3 0

Answer:

-9

Step-by-step explanation:

-78+69

=-9

happy to help

You might be interested in
Which of the following shows the graph of a line through (-2,2) and (2,4)
Diano4ka-milaya [45]
You didn't include the options, but one and only one line passes through two poins.

You can find the equation of the line that passes through two known points in this way:

[Y -Y1] / [X -X1] = [Y2 - Y1] / [X2 -X1]

in this case (X1,Y1) = (-2,2) and (X2,Y2) = (2,4)

=> [Y - (2) ] / [X - (-2) ] = [4 - 2] / [2 - (-2) ]

=> [Y -2] / [X + 2] = 2/4 = 1/2

=> 2 * (Y - 2)  = X + 2

=> 2Y - 4 = X + 2

=> 2Y = X + 2 + 4

=> 2y = x + 6

=> y = x/2 + 3

So you must look the graph of that equation.

Some of the points of that graph are:

x         y

-6       -6/2 + 3 = 0

-4        -4/2 + 3 = 1

-2         -2/2 + 3 = 2

0           0 + 3 = 3

2           2/2 + 3 = 4

4           4/2 + 3 = 5

So, you should find the correspondant graph easily.
6 0
4 years ago
Read 2 more answers
Kayla tutors a student for 18.50 per hour. She spends $50 on transportation. How much does she earn if she tutors for x hours
Zinaida [17]

Answer:

Step-by-step explanation:

18.5x-50

5 0
3 years ago
Steve is turning half of his backyard into a chicken pen. His backyard is a 24-meter by 45-meter rectangle. He wants to put a ch
Bad White [126]
The diagonal line is equal to \sqrt{24^{2} + 45^{2}  } using pythagoras' theorem of a^{2} + b^{2} =  c^{2}. This gives us a value of 51m for the diagonal line.

TOTAL; 51+24+45=120m of fencing 
4 0
3 years ago
How to solve <br> -3(4R-8)-36
natima [27]

Answer: -12r-12

Step-by-step explanation: There is no equals sign so you can't solve it but you can simplify it. You start out with -3(4r-8)-36. Then, you use PEMDAS. (-3×4r)+(-3×-8)-36. Then, it turns into -12r×+24-36. You just continue to simplify until you can't anymore. You end up with -12r-12.

7 0
4 years ago
How do I solve for n and m using special right triangle rules.
kenny6666 [7]

Answer:

Because the triangle is a 45-45-90 triangle, the n and m should be the same lengths. For these types of triangles, the hypotenuse is x\sqrt{2} and the side lengths are x. Because we are given the length of the hypotenuse, we need to find the x-value. The equation should be 6=x\sqrt{2}. Simplify to get x=3\sqrt{2}. So, the length of n and m should both be 3\sqrt{2}.

7 0
3 years ago
Other questions:
  • Which statement is true about the given function?
    8·2 answers
  • a person is scheduled to pick up 9 crates each crate weighs 1/4 how much weight will the delivery have
    9·2 answers
  • Find the answer! 10 points to the first person!
    13·1 answer
  • A. 37<br> b. 62 <br> c. 60 <br> d. 39
    7·2 answers
  • Help and explain <br><br> Don’t use for points or I will take it back
    12·1 answer
  • Hi, anyone know this? ^^ ill give brainliest if right
    6·1 answer
  • The oranginal question was order these fractions from least to greatset:
    9·1 answer
  • Put this fro greaest to least 0.35,4/9,42%,3/8
    7·1 answer
  • I need help lol..<br><br> what is a solution to this equation:<br> y = -1/4x + 8
    5·1 answer
  • Match each positive or negative value with the situation that describes it
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!