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wolverine [178]
3 years ago
7

Write and solve an equation to find the number n. The sum of twice a number and 13 is 75.

Mathematics
2 answers:
irina1246 [14]3 years ago
7 0

Answer:

31 is n

Step-by-step explanation:

75=13+2n

<em>75-13=62</em>

62=2n

<em>62/2=31</em>

31=n

xeze [42]3 years ago
7 0

Answer:

Let the required number be "n"

According to the above problem,

2n + 13 = 75 \\ 2n = 75 - 13 \\ 2n = 62 \\ n =  \frac{62}{2} \\  \boxed{n = 31 }

Therefore,

  • <u>n = 31</u> is the right answer.
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Komok [63]

Answer:

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5 0
3 years ago
Write 9,540,000 in expanded form using exponents to show powers of 10
krek1111 [17]

Answer:

9* 10^{6}+ 5* 10^{5}+4* 10^{4}.

Step-by-step explanation:

Given  :  9,540,000

To find : Write 9,540,000 in expanded form using exponents to show powers of 10.

Solution : We have given 9,540,000

Here 9 is at million place 9000000

5 is at hundred thousand place = 500,000.

4 is at tens thousand place = 40,000

We expanded it as

9, 000,000 + 500,000+40,000.

In term of power of 10.

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Therefore,

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6 0
3 years ago
.In a group of 40 people, 15 people are wearing
Oksi-84 [34.3K]

Answer:

It should be 5:10 or 5 people not wearing sneakers and 10 not wearing a blue shirt

Step-by-step explanation:

Well it quite simple 1st you have the total which is 40

next you look at the rest, 15 people wearing sneakers plus the 5 waering sneakers and blue shirt. now you have 15.

next you have 10 people wearing but shirts. if you add the numbers you have now you get this: 15+10=25.

Now that you have 25 you can just add numbers to get 25(in that case 10 and 5). whats how you get 5:10

hope this helps (barry_ary)

4 0
3 years ago
Read 2 more answers
Bob bought a bike for $250 and repaired it . He can now sell the bike for $300. What is the percent increase in the value bike ?
alexgriva [62]

Answer:20%

Step-by-step explanation:

250*20%=50

50+250=300

7 0
3 years ago
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Amounttotal=amount per day times number of days
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about 12 days
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