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tatuchka [14]
2 years ago
14

Pleaseeeeeeeee help me

Mathematics
1 answer:
Anastasy [175]2 years ago
5 0

Answer:

<h2><u><em>42</em></u></h2>

Step-by-step explanation:

56 : x = 16 : 12

x = 56 * 12 : 16

x = 672 : 16

x = 42

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Trey deposited 20% of his paycheck in the bank. if he deposited $30 how much was his paycheck
Komok [63]

Answer: 150

Step-by-step explanation: so when you want a whole amount of something you want to the 100% of it because 100% is the whole thing right? Well right now you only have 20% so how much do you need to multiply that by to get 100%?? Well that answer is 5. Okay so now since $30 is 20% but we wanna get it to 100% multiply it by 5 so 30x5 which is 150

3 0
3 years ago
Find the sum of the series given in sigma notation.
Kryger [21]

Answer:

Option b is correct 175

Step-by-step explanation:

n = 7

k = 6

3k -2 ------1

put k = 6 in above eq. for finding first term

  a1 = 3(6) - 2  = 18 - 2 = 16

put k = 7 in above eq. for finding first term

 a2 = 3(7) - 2 = 21 - 2 = 19

 a3 = 3 (8) - 2 = 24 - 2 = 22

16, 19 , 22, ...  //Arithmetic series formation

a1 = 16 , a2 = 19

d = a2 - a1 = 19 - 16 = 3 //Difference of first two terms

Using sum forumula for arithmetic series

sum = \frac{n}{2}(2a1 + (n-1)d)

      = \frac{7}{2}(2a1 + (7-1)d)

      = \frac{7}{2}(2(16) + (6)3)

      =  \frac{7}{2}(32 + 18)    

      =  \frac{7}{2}(50)

      = 7 * 25

      = 175




4 0
3 years ago
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-10-40n-8
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5 0
3 years ago
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6 0
3 years ago
There are approximately fifty five million metric tons of apples grown each year. It has been estimated that half of all the app
Brut [27]

Answer:

Twenty-seven and a half million metric tons of apples are eaten fresh.

Step-by-step explanation:

The amount of metric tons of apples that are eaten fresh is equal to the half of the total amount of metric tons. That is:

m = \frac{55,000,000\,m-ton}{2}

m = 27,500,000\,m-ton

Twenty-seven and a half million metric tons of apples are eaten fresh.

3 0
3 years ago
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