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
ira [324]
3 years ago
15

If |x| = 7 and |y| = 13, then which of the following could be equal to x + y?

Mathematics
2 answers:
vichka [17]3 years ago
8 0

Answer:

Answer shown from explanation

Step-by-step explanation:

|x| means modulus of x such that positive or negative value of x evaluates to a positive value.

|x| = 7 is the same as x = -7 and x = 7

Similarly,

|y| = 13 is the same as y = -13 and y= 13;

Hence the possible values are;

7+13= 20

7-13= -6

-7-13= -20

-7 + 13 = 6

likoan [24]3 years ago
6 0

Answer:

20, -20, -6, 6

Step-by-step explanation:

x and y could be negative or positive.

You might be interested in
MNMNMNMNMMMNMNMNMNMNMNMMNMNMN
IrinaVladis [17]
All you have to do is divide each one by its other number.  For example, 5.60 for 8 is the same as one for 0.70.  We accomplish this by dividing the 5.60 by 8.
So...
0.70
0.80
0.90
0.75
The first choice is the lowest.
6 0
3 years ago
2 numbers are in the ratio 1:2 if the first number is decreased by 5 and second number is increased by 4 their ratio becomes 5:4
Anna35 [415]

Answer:

-20/3 & -40/3

Step-by-step explanation:

Let’s say that the 1st number is X and the 2nd number is Y.

Given that x:y = 1:2 => x/y = 1/2 => 2x = y

and a-5/y+4 = 5/4 (The first number is decreased by 5 and the second number is increased by 4.)

=> 4(x - 5) = 5 (y + 4)

=> 4x - 20 = 5y + 20

=> 4x - 5y = 40

As, 2x = y , 4x = 2y

=> 2y - 5y = 40

=> -3y = 40

=> y = -40/3 ; x = y/2 = -20/3

This might be confusing but I hope this helps :)

7 0
3 years ago
Solve.<br>1.5 - 0.25(a + 4)= 3 + 3(0.05 - 0.5a)
alisha [4.7K]
The answer should be 2.12 
5 0
2 years ago
Read 2 more answers
-4x + 6 + 2x + 5, Solve for X
pychu [463]
-4x + 2x = -2x
6 + 5 = 11
Therefore, 11 - 2x = 0
11 = 2x
x = 11/2 = 5.5
8 0
3 years ago
If triangle VWZ is congruent to triangle XWY, find the length of YX.
valkas [14]

Answer:

Measure of side YX is 22 units.

Step-by-step explanation:

Since ΔVWZ ~ ΔXWY, their corresponding sides will be in the same ratio.

\frac{VW}{XW}=\frac{VZ}{XY}=\frac{WZ}{WY}

By substituting the values given in the picture in the ratio,

\frac{45}{30}=\frac{(3x-9)}{(x+8)}=\frac{36}{24}

\frac{(3x-9)}{(x+8)}=\frac{3}{2}

By cross multiplication,

2(3x - 9) = 3(x + 8)

6x - 18 = 3x + 24

(6x -18) + 18 = 3x + 24 + 18

6x - 3x = (3x + 42) - 3x

6x - 3x = 42

3x = 42

x = \frac{42}{3}

x = 14

m(YX) = x + 8

          = 14 + 8

          = 22

Therefore, measure of side YX is 22 units.

8 0
2 years ago
Other questions:
  • sherry was in charge of distributing 25 food items that were donated to the local food pantry.on monday,she distributed 8 items.
    7·1 answer
  • What is bigger 15 % or 1/5 ?
    10·1 answer
  • What is infinity + infinity
    7·2 answers
  • The average weight of the top 5 fish at a fishing tournament was 13.9 pounds. Some of the weights of the fish are shown in the t
    10·1 answer
  • How many cups = to 56 ounces
    8·1 answer
  • Solve: √2z+3 = - z. If there are multiple solutions, list them separated by a comma, e.g., 1, 2. If there is no solution,
    13·2 answers
  • Answer Quick it has to be finished in 5 min
    12·1 answer
  • PLSSSS HELP ME WITH THIS QUESTION!!!
    13·2 answers
  • HELP!!!
    6·2 answers
  • Rewrite each expression without using absolute value notation.<br><br> |x-y| if x&gt;y
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!