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nadezda [96]
3 years ago
12

Which are equivalent expressions?

Mathematics
1 answer:
aivan3 [116]3 years ago
6 0
There are 5 options. Let's figure out which ones are wrong, and why:
<span>y + y + y = y(1 + 1 + 1)
This one is correct, because of the distributive property. Another equivalent is 3y.

2a + 2b = 4ab
This one is incorrect, as you are not multiplying the numbers.

3 · (2 + x) = 6 + 3x
This one is correct, because of the distributive property

2t + 3t = 5t
This is correct, as you can add variables together as long as all the variables are the same

x + 3 = 4x
This is not correct, as 4x is 4 x's.
</span>
You might be interested in
What is 8n-(2n-3)=12 ?
bixtya [17]
Okay luv so let's solve this equation together:
8n-(2n-3)=12
simplify
8n+-1(2n-3)=12
8n+-1(2n)+(-1)(-3)=12
8n+-2n+3=12
(8n+-2n)+(3)=12 Combine like terms
6n+3=12
Then subtract from both sides
6n+3-3=12-3
6n=9
Then divide both sides by 6
6n/6=9/6
so...n=3/2


5 0
3 years ago
PLEASE HELP ME.
N76 [4]

Answer:

jssjsjjsjsjsjsjsjsjsjs

Step-by-step explanation:

jsjsjsjsjssjsjsjsjsjsj

8 0
3 years ago
A soccer team estimates that they will score on 77​% of the corner kicks. In next​ week's game, the team hopes to kick 1414 corn
andrezito [222]

Answer:

18.66521%

Step-by-step explanation:

It seems all of the numbers are duplicated, the correct number should be 7%, 14 corner kicks, and 2 opportunities.  

The team has 7%(x=0.07) chance to score so that means the chance to not scoring will be: y= 1-x = 100%-7%= 93%. There are 14 opportunities and we want to know the probability to get exactly 2 scores. The calculation will be:

P(x=2)= 2C14 * x^2 * y^12

P(x=2)=91 * 0.07^2 * 0.93^12= 18.66521%

6 0
3 years ago
The table shown lists the atomic weight of the elements that begin with the letter c. What's the range of these
kondaur [170]

The Answer is 2

34.989.I used a physics book

3 0
3 years ago
The ratio of incorrect to correct answers on Marco's math test was 4 to 6. If Marco missed 39 problems, how many did he get corr
lesantik [10]
39/6= 6.5 then u multiply
6.5 times 4  = 26 
which 26 is your answer
3 0
3 years ago
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