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vlada-n [284]
3 years ago
13

Twice the difference of a number and seven is equal to three times the sum of the number and seven

Mathematics
1 answer:
Nana76 [90]3 years ago
5 0
2(n-7) = 3(n+7)
2n-14 = 3n + 21
   -35  = n  (answer)
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Please help! I really need it
nirvana33 [79]
Add all sides.
5x+2+3x+8+4x-1
Combine like terms
12x+9
Subtract nine to get it on the other side of the equal sign
12x= -9
Divide by twelve
x=-9/12
Simplify
x=-3/4
Plug in x.
4 0
3 years ago
Help again <3 ty i will very much appreciate it
krok68 [10]

Answer:

5√3 is the simplified radical expression.

3 0
3 years ago
26:12
wlad13 [49]

Step-by-step explanation:

Function of the cylinder is to measure liquid volumes accurately. They are extensively used in chemistry and biology labs, where quantities of accurately measured liquids need to be used. They are purposely designed to be long, with a shorter diameter compared to beakers, to facilitate accurate measurements.

6 0
3 years ago
Can you help me solve this please :/
alex41 [277]

Answer:

2√3

Step-by-step explanation:

In a special right triangle called the 30-60-90 triangle, the ratios of the side lengths are x-x√3- 2x respectively. This means that the side opposite to the 60 degrees is x√3 and the side opposite to the 30 degrees is x.

Since the side opposite to the 60 degrees is 6, x√3=6

x√3=6

x=6/√3

rationalize the denominator:

6√3/3

simlify

2√3

so the answer is the third one. 2√3

7 0
2 years ago
Read 2 more answers
Which of these is equal to 5 (8 – t)?<br> A) 5t - 40<br> B) 5t + 40<br> C) t - 40<br> D) 40 - 5t
Aneli [31]

Answer:

D) Is the correct answer 40 - 5t

Step-by-step explanation:

I hope that help's

6 0
3 years ago
Read 2 more answers
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