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
dimulka [17.4K]
3 years ago
10

Which pair of expressions are equivalent?

Mathematics
2 answers:
mixas84 [53]3 years ago
7 0

Answer:

D: x + y and x -- y + 2y

Step-by-step explanation:

The pair of expressions in the option D are equivalent. Equivalent expressions are those algebric expressions that will help you obtain the same results, even though they look different. (you can get the same results, independently of the number used in the place of the variables.)

x - y + 2y= x + y

- y + 2 y = + 1 y = + y

x + y; x + y

g100num [7]3 years ago
4 0
D is equivalent
x-y+2y=x+y
You might be interested in
Sue wants to plan a meal with 71 grams of fat and 1755 calories. If hot dogs have 13 grams of fat and 145 calories each and if b
Lena [83]

Answer:

Sue must use 3 hotdogs and 4 half-cup serving of baked beans.

Step-by-step explanation:

Let the number of hot dogs be represented by h

Let the number of baked beans be represented by b

Hot dogs have 13 grams of fat and 145 calories each

Baked beans have 8 grams of fat and 330 calories per half cup serving

Sue wants to plan a meal with 71 grams of fat and 1755 calories.

Grams of Fat from Hotdog + grams of fat from baked beans=71

13h+8b=71....(I)

Similarly,

Calories from hot dog + Calories from baked beans=1755

145h+330b=1755....(II)

We then solve Equations (I) and (II) simultaneously.

13h+8b=71....(I)

145h+330b=1755....(II)

Multiply equation 1 by 145 and equation 2 by 13

1885h+1160b=10295

1885h+4290b=22815

Subtracting

-3130b=-12520

b=4

Substitute b=4 into (I)

13h+(8X4)=71

13h=71-32

13h=39

h=3

Sue must use 3 hotdogs and 4 half-cup serving of baked beans.

4 0
4 years ago
Show work
adelina 88 [10]

Answer:

  1. n = 5
  2. m = 12
  3. m= -14
  4. y =30

Step-by-step explanation:

1.

n -8 =-3\\\\Collect\:like\:terms\\n = -3+8\\\\Simplify ; -3+8 = 5\\\\n =5

2.

-2m=-24\\\\Divide\: both \:sides\:of\:the\:equation\:by\:-2\\\\\frac{-2m}{-2} = \frac{-24}{-2} \\\\Simplify ; -2m/-2 = m , -24/-2 = 12\\\\m =12

3.

\frac{m}{2}=-7\\\\Cross\:Multiply\\\\m\times 1 = 2\times -7\\\\m = -14

4.

\frac{2}{3}y=20\\ \\\frac{2}{3} y = \frac{20}{1} \\\\Cross\:Multiply\\\\2y\times 1 = 3\times 20\\\\2y = 20\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2y}{2}=\frac{60}{2}\\\\Simplify\\y = 30

3 0
3 years ago
What is the difference between theoretical and experimental probability?
IRINA_888 [86]
Theoretical probability is  what you would expect  the result of an experiment would be. For example if you tossed a fair coin 10 times the theoretical result would be 5 heads and 5 tails, because  probabilty of 1 toss is 1/2 for tailand 11/2 for a head.

I practice however we might get , say, 6 heads and 4 tails 
So experimental probability of e head would be 6/10 and of a tail would be 4/10.

3 0
4 years ago
After the strand of measurement why do you think that graphing and data analysis are easier? Please help ASAP!!! :(
Vikki [24]
It’s organized and you can see it more visually , gives you a way to double check and write down the data properly.
8 0
3 years ago
What is the value of g?<br> −5+7g=3g+9<br> A.) g=−1<br> B.) g = 1<br> C.) g=125<br> D.) g=312
Whitepunk [10]

Answer:

The answer is D

Step-by-step explanation:

Give the other person brainlest

6 0
3 years ago
Read 2 more answers
Other questions:
  • Natasha had a $922.93 balance on her credit card at the beginning of September. Her credit card has an APR of 9.89%, compounded
    11·1 answer
  • PLEASE HELP 10 Points!!!!
    12·1 answer
  • The solution to 5.2x = 14.04 is x = ___.
    13·1 answer
  • What is 90 divided by 60?
    13·1 answer
  • PLEASE ANSWER + BRAINLIEST!!!
    10·2 answers
  • ABCDE is aregular pentangon<br> X=?
    15·1 answer
  • 2. The ratio of 7th graders to 8th graders in student council is 2:3.
    6·1 answer
  • Help please I’m being timed!!
    12·1 answer
  • I NEED HELP ON NUMBER 11 ASAP!!
    12·1 answer
  • Use substitution to solve the system.<br><br>3x + 5y = 23<br>x = 3y - 11​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!