All categories

3 years ago

What is the substitution property of equality

1 answer:

6 0

The substitution property of equality, one of the eight properties of equality, states that if x = y, then x can be substituted in for y in any equation, and y can be substituted for x in any equation.

You might be interested in

Ron tosses a 6-sided number cube labeled 1 to 6. Describe the probability that he tosses a number greater than 1. Explain your r

Brrunno [24]

5:6. cuz there are 5 numbers greater than 1 that can be rolled

4 0

3 years ago

Read 2 more answers

Una ciudad tenía 8000 habitantes a final del año 2000. Cada año su población se incrementa en un 0.5 %

Digiron [165]

Answer:

The correct answer is 2030.

Step-by-step explanation:

To start we must analyze the information we have.

We know that a city has 8000 inhabitants and that each year this number increases by 0.5%. That means that <u>each year it has 40 more inhabitants</u>:

(8000 . 0,5) : 100 = 40

Having this information we could do a cross multiplication:

1 year ------- 40 inhabitants

x years ------- 81200

81200 = 40.x

x = 81200 : 40

x = 2030

In this way we can verify that the correct answer is 2030.

4 0

3 years ago

A marching band is arranged in rows of 7 the first row has 3 band members and each row after the first has 2 more band members t

pav-90 [236]

Answer:

$a_{n}$ = 1+2n and 63

Step-by-step explanation:

the question belongs to arithmetic sequence and $a_{n}$ can be determined by the formula

$a_{n}$ = a1 + d (n-1)

Let " $a_{n}$ " represents the number of band members in the nth row

and 'd' represents the common difference.( as stated each row has 2 more band members than the row before it)

therefore, d=2

'a1' represents first row that has three members. So, a1 = 3

->Rule for nth term will be:

$a_{n}$ = 3 + 2(n-1)

$a_{n}$ = 3 + 2n -2

$a_{n}$ = 1+2n

-> In order to find total number of band members ' $S_{7}$ '

Let $S_{n}$ represent total number in n rows

We'll use the formula, i.e $S_{n}$ = n/1 ( $a_{1}$ + $a_{n}$ )

where, n is the number of terms, $a_{1}$ is the first term and $a_{n}$ is the last term

So,

n=7

$a_{7}$ = 1 + 2(7)= 15

=> $S_{7}$ = 7/2 (3 + 15)

$S_{7}$ = 63

The total number of band members are 63

8 0

3 years ago

If -48 equals 6(a) then a is what<br>

Oksi-84 [34.3K]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

<em>Expression:</em>

$\frac{-48}{6}=\frac{6}{6}a$

$-8 = a$

Your answer is -8.

I hope this helps!

8 0

3 years ago

Graph<br> plz step by step

Mazyrski [523]

Answer:

Step-by-step explanation:

The equation shown in the question can be seen graphed in the image attached below. As you can see with the graphed equation the variable x can be any real number except for -1. This is because a -1 would cause the denominator of the fraction to be equal to 0, and a fraction with a denominator as 0 is a null value and does not exist.

5 0

3 years ago