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2 years ago

Pls answer the first one to answer and get right will get Brainliest

Mathematics

2 answers:

scoray [572]2 years ago

8 0

Answer:

The answer is 7

Step-by-step explanation:

julia-pushkina [17]2 years ago

5 0

Answer:

x=-2

Step-by-step explanation:

add 5 to get rid of the -5 and then -4 become 1 then multiply by 10 to get rid of the divide by 10 then 10 times 1 equals 10 so then you divide by negative 5 so now you have x=10÷-5 and that equals -2

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2. Find the common difference and the recursive formula. a. 22, 19, 16, 13, …

Musya8 [376]

Answer:

The common difference d is d = -3

The recursive formula is: $\mathbf{a_n=a_{n-1}-3}$

Step-by-step explanation:

We need to find the common difference and the recursive formula.

a. 22, 19, 16, 13, …

First we will find common difference

The formula of arithmetic sequence is: $a_n=a_1+(n-1)d$

where a_n is nth term, a_1 is 1st term and d is the difference

Looking at the sequence we get: a_1=22, a_2=19

Using these values we can find d, the common difference

$a_n=a_1+(n-1)d\\put\:n=2, a_2=19, a_1=22\\19=22+(2-1)d\\19=22+d\\d=19-22\\d=-3$

So, the common difference d is d = -3

Now, we will find the recursive formula:

The recursive formula is of type: $a_n=a_{n-1}+d$

We have found common difference d = -3

So, the recursive formula will be:

$a_n=a_{n-1}+d\\a_n=a_{n-1}+(-3)\\a_n=a_{n-1}-3$

The recursive formula is: $\mathbf{a_n=a_{n-1}-3}$

6 0

3 years ago

De un grupo de 60 personas, la tercera parte finalizó la escuela primaria solamente, y las ⅖ partes completaron la secundaria. E

notka56 [123]

Answer:

36 personas

Step-by-step explanation:

las 2/5 partes q completaron secundaria tambien finalizaron primaria

con lo cual el tercio que estudio primaria esta dentro del grupo de personas que estudiaron

60*2/5 = 24

24 personas estudiaron

60-24=36

4 0

2 years ago

Would a scale factor of -2 be considered an expansion or a contraction?

LekaFEV [45]

Scale factors of negative numbers are contractions

scale factors of numbers greater then 1 are expansions
scale factors of numbers greater then 0 but less then 1 are contractions

6 0

2 years ago

Whose<br>The boy ..... dog was hit by a car has not been to school for 3 days,

bekas [8.4K]

Step-by-step explanation:

huh what you are trying to say

3 0

2 years ago

3/n of 32 is 24 solve for n

Sonbull [250]

Answer:

n=4

Step-by-step explanation:

Of means multiplying so,

$\frac{3}{n}$ ×32=24

Multiply by n on both sides to get rid of the n denominator.

3×32=24n

Simplify the equation.

96=24n

Divide by 24.

n= 4

6 0

3 years ago

Read 2 more answers