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3 years ago

Help please I’ll give brainliest

Mathematics

2 answers:

Sonja [21]3 years ago

3 0

1/4 because there are 8 letters in vacation and two a’s meaning it’s a 2/8 chance simplify that to 1/4 (25%)

stepan [7]3 years ago

3 0

Answer:

Step-by-step explanation:

2/8 are A simplfied would be 1/4

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Find the exact solution of x 3x^2+7=28

chubhunter [2.5K]

Answer

x^2 = 7

so yeah u could've looked it up

6 0

3 years ago

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How many grams are in 15 kilograms? 1.5 150 1,500 15,000

diamong [38]

15000 because 15kg x 1000 = 15000g

8 0

3 years ago

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Write a rule for the nth term of the arithmetic sequence:<br><br> a11= 50, d = 7

ivolga24 [154]

Answer:

Required rule for $n^{th}$ is $a_{n}=7n-27$ .

Step-by-step explanation:

Given that,

$a_{11} = 50,\ \ d=7$

From the question: we have to write the $n^{th}$ term of Arithmetic sequence.

Arithmetic Sequence or Arithmetic progression (A.P) : It is a sequence which possess that difference between of two successive sequence is always constant.

$a_{1} ,a_{2},a_{3},a_{4}.....................a_{n-1},a_{n}$

where, $a_{1}$ is the first term of A.P

$d$ is the common difference.

$a_{n}$ is the last term or general term.

The above sequence to be in A.P then their common difference should be equal.

$d=a_{2}-a_{1} =a_{3}-a_{2}=a_{4} -a_{3} ..........................a_{n}-a_{n-1}$

Now, Formula of General Term is $a_{n}=a+(n-1)d$

So, $a_{11}= a+(11-1)d\\ a_{11} = a+10d$

Substituting the value of $a_{11} = 50,\ \ d=7$ we get,

$50=a+10\times7\\50=a+70\\a=-20$

Then General term ( $a_{n}$ ) of given data is

$a_{n}=-20+(n-1)7\\a_{n}=-20+7n-7\\a_{n}=7n-27$

Therefore, Required rule for $n^{th}$ is $a_{n}=7n-27$ .

5 0

3 years ago

Please help I will mark brainliest

klasskru [66]

Answer: Tyrone has 28 mystery novels.

Step-by-step explanation:

Divide 42 by 3 to get 1/3 of the books he has.

42/3 = 14

14 * 2 = 28

28 = 2/3 of his books

7 0

3 years ago

Solve t+m=r for r <br> pls help.

AlexFokin [52]

Hi!

<h3>So, we need to figure out what r equals. </h3>

r doesn't have to be a number. r has to equal a value. A value can be variables, or numbers, it doesn't matter.

<h3>The equation says r = t + m. Read the equation out loud. </h3>

<u>r equals t plus m. </u>

<h3>There's the value of r! </h3><h2>The answer is the problem: r = t + m</h2>

Hope this helps! :)

-Peredhel

4 0

3 years ago