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otez555 [7]
4 years ago
7

Please help with 2 questions

Mathematics
2 answers:
viktelen [127]4 years ago
4 0
You have to make proportions put the percentages over 100 then divide by 4
irakobra [83]4 years ago
3 0
-- Remember how to find an average:
           -- Add up all the items on the list.
           -- Divide the sum by the number of items on the list.

-- John's first 3 test scores were 94, 98, and 98 .

-- His score on the 4th test will be 'F' .

-- His average after the fourth test will be

                                   (94 + 98 + 98 + F) / 4 .

-- He wants that average to be 96. 

                             96  =  (94 + 98 + 98 + F) / 4

There's your equation.

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To describe a specific arithmetic sequence, Elijah wrote the recursive formula:
Rufina [12.5K]

Answer:

Y(n) = 7n + 23

Step-by-step explanation:

Given:

f(0) = 30

f(n+1) = f(n) + 7

For n=0 : f(1) = f(0) + 7

For n=1 :  f(2) = f(1) + 7

For n=2 : f(3) = f(2) + 7 and so on.

Hence the sequence is an arithmetic progression with common difference 7 and first term 30.

We have to find a general equation representing the terms of the sequence.

General term of an arithmetic progression is:

T(n) = a + (n-1)d

Here a = 30 and d = 7

Y(n) = 30 + 7(n-1) = 7n + 23

7 0
4 years ago
What is the result when 3x3 – 7x2 – 17x - 12 is divided by 2 – 4?
lisabon 2012 [21]
It is that’s wat I got 1028
8 0
3 years ago
Approximately how many times greater is 9.75 * 10^6 than 1.25 * 10^2?
lapo4ka [179]
7.8 is the answer...
7 0
3 years ago
Rearrange x = 7y - 5 to make y the subject.
nalin [4]

By rearranging x = 7y - 5 to make y the subject, we get

x + 5 = 7y ( By transposition method )

or, \huge \purple {\tt {\frac{x + 5}{7}  = y}}

<h2>Answer:</h2>

\huge \pink {\tt {y =  \frac{x + 5}{7}}}

3 0
3 years ago
Proving a Quadrilateral Is a Parallelogram
Schach [20]

Answer: a. yes, one pair of opposite sides could measure 10in., and the other pair could measure 13 in.

Step-by-step explanation: i just took it

8 0
3 years ago
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