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yuradex [85]
3 years ago
11

First step to solve this equation x-5=7-2x

Mathematics
2 answers:
vovangra [49]3 years ago
7 0

Answer:

The answer is Add 2x to both sides of the equation

Step-by-step explanation:

solniwko [45]3 years ago
6 0
Step 1: Move all terms containing x to the left side of the equation

3x−5=7
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A jar contains five red marbles and three green marbles. A marble is drawn at random and not
jenyasd209 [6]

The jar starts out with 8 marbles in it. Five of them are red.
If you don't peek, the probability of drawing a red marble is

                 5/8 .

If you have already drawn a red marble on the first try, then
at that point, the jar has only 7 marbles in it, and three of them
are green.  Now, for your second draw, if you don't peek, the
probability of drawing a green marble is

                  3/7 .

The probability of BOTH of those events being successful is

               (5/8) x (3/7) = 15/56  =  approx 26.79% .
                
8 0
3 years ago
A bourse travels 270 miles in 30 hours what is it’s speed
Likurg_2 [28]

Answer:

9 miles per hour

Step-by-step explanation:

6 0
3 years ago
On a particular day, the wind added 5 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 5 miles
Nata [24]

now, this is pretty much the same as the one before it with Jaime, so I'll do this without much fuss.

recall d = rt.

a = Alfonso's rate

with the wind his speed is a + 5, against it is a - 5, 60 miles with it and 30 miles against it, all in the same time of t hours.

\bf \begin{array}{lcccl} &\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\ &------&------&------\\ \textit{with the wind}&60&a+5&t\\ \textit{against the wind}&30&a-4&t \end{array} \\\\\\ \begin{cases} 60=(a+5)t\implies \frac{60}{a+5}=\boxed{t}\\\\ 30=(a-4)t\\ -------------\\ 30=(a-4)\left( \boxed{\frac{60}{a+5}} \right) \end{cases} \\\\\\ 30(a+5)=(a-4)60\implies 30a+150=60a-240 \\\\\\ 390=30a\implies \cfrac{390}{30}=a\implies 13=a

8 0
3 years ago
What’s the answer of g
Lunna [17]

Answer:

\huge\boxed{g(a-1)=\dfrac{2-a}{a}=\dfrac{2}{a}-1}

Step-by-step explanation:

g(t)=\dfrac{1-t}{1+t}\\\\g(a-1)-\text{substitute}\ t=a-1\ \text{to}\ g(t):\\\\g(a-1)=\dfrac{1-(a-1)}{1+(a-1)}=\dfrac{1-a-(-1)}{1+a+(-1)}=\dfrac{1-a+1}{1+a-1}=\dfrac{(1+1)-a}{(1-1)+a}=\dfrac{2-a}{a}

6 0
3 years ago
In how many different ways can the letters of the word 'CORPORATION' be arranged.
Komok [63]
Hey :)

The answer is 50400 ways

Because,
The word 'CORPORATION' has 11 letters.

It has the vowels 'O', 'O', 'A', 'I', 'O' in it and these 5 vowels should always come together.

These 5 vowels can be grouped and considered as a single letter. CRPRTN (OOAIO).

Hence we can assume total letters as 7. But in these 7 letters, 'R' occurs 2 times and rest of the letters are different.


Hope this helps!
3 0
3 years ago
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