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maxonik [38]
3 years ago
7

Can you solve -6x+7=-49+2x step by step

Mathematics
1 answer:
zvonat [6]3 years ago
4 0

Step-by-step explanation:

- 6x + 7 =  - 49 + 2x \\  - 6x - 2x =  - 49 - 7 \\  - 8x =  - 56 \\ x =  \frac{ - 56}{ - 8}  \\  x = 7

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lys-0071 [83]
If he bought all that then he would have spent 265$
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3 years ago
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Express 20minutes as ratio of 2hours​
Flauer [41]

Answer:

1hr : 10min

Step-by-step explanation:

2 hrs = 120 min

1 hr : 60 min

so

1hr : 10min

3 0
3 years ago
The number 40 cannot be decomposed into prime factors<br><br>True<br>either<br>False​
dusya [7]

\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: {\large{\textsf{\textbf{\underline{\underline{Answer : \:}}}}}}

False, because the number 40 is a composite number, those that cannot be broken down are called Prime Numbers.

Prime numbers are numbers that are used to decompose any number, but prime numbers cannot be decomposed, since they only have two Divisors, which are 1 and itself.

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3 0
1 year ago
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What is the sum of the first 100 terms of the sequence 4,9,14,19, ...?
Nadya [2.5K]

Answer:

25150

Step-by-step explanation:

First, we have to see that this is an arithmetic sequence... since to get the next element we add 5 to it.  (a geometric sequence would be a multiplication, not an addition)

So, we have a, the first term (a = 4), and we have the difference between each term (d = 5), and we want to find the SUM of the first 100 terms.

To do this without spending hours writing them down, we can use this formula:

S = \frac{n}{2} * (2a + (n - 1) * d)

If we plug in our values, we have:

S = \frac{100}{2} * (2 * 4 + (100 - 1) * 5) = 50 * (8 + 99 * 5)

S = 50 * (8 + 495) = 50 * 503 = 25150

8 0
3 years ago
Read 2 more answers
Can someone help me real quick
LuckyWell [14K]

Answer:

12 movies

Step-by-step explanation:

If you do not rent any vidoes you will be charged $45 no matter what, so...

Movies + 45 = total charge

each movie is 1.99 and you owe (total charge) $68.88

equation:

1.99x + 45 = 68.88

          -45       -45    (subtract 45 from each side to keep equation balanced)

1.99x = 23.88  (now divide both sides by 1.99 to get x alone)

     x = 12

you rented 12 movies

3 0
3 years ago
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