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Leni [432]
3 years ago
5

Simplify this expression 3x+6x

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
5 0
9x would be the answer.
Ierofanga [76]3 years ago
4 0
Since both 3x and 6x have the variable x in it, we can just go ahead and add 3 and 6.

3x+6x=9x
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on a test, a student answered 12 questions correctly. this number represents 80% of the total number of questions were on the te
barxatty [35]

Answer:

Step-by-step explanation:So if he or she answered 12 right and got 80% then if you count to 100% at should be 14 questions I think if i am wrong sorry

12=80%

13=90%

14=100%

6 0
3 years ago
A+b : [(4+5i) + (1+5i)] . (1+i) =a+bi
r-ruslan [8.4K]
F4534545566(6)66767788
3 0
2 years ago
1/2x+3=5 <br>how do you do 2 step problems like this ​
zalisa [80]
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8 0
3 years ago
Please solve for me!!
kifflom [539]

Answer:

8:30 PM

Step-by-step explanation:

Let's say that x is minutes since 6:20 PM, and y is position in miles.

Since Jonathan drives at a constant rate, the position vs time graph is linear.  Two points on the line are (0, 75) and (20, 85).  The slope of the line is:

m = Δy / Δx

m = (85 − 75) / (20 − 0)

m = ½

So the equation of the line is:

y = ½ x + 75

We want to find x when y is 140.

140 = ½ x + 75

65 = ½ x

x = 130

So 130 minutes after 6:20 PM is when Jonathan's position will be 140 miles.  130 minutes is 2 hours and 10 minutes.  So the time will be 8:30 PM.

3 0
3 years ago
1/4c= __pints please help me this is really hard
Studentka2010 [4]

Answer:

0.125.

If c is cup then 1 cup = 0.5 US Liquid pint and 1/4c should be 0.125.

Step-by-step explanation:


4 0
3 years ago
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