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velikii [3]
3 years ago
15

How many variables are in this equation: 2y + 5 = 5n

Mathematics
2 answers:
jeka57 [31]3 years ago
6 0

Answer:

2

Step-by-step explanation:

variables are letters attached to numbers, so 2y has one variable (the y) and 5n has one (the n)

pickupchik [31]3 years ago
5 0

Answer:

There are 2 variables in the equation. The variables are y and n

You might be interested in
If LM = 7 and LN 7 and LN = 18, what is MN?​
Lena [83]

Answer:

There are two possible values: MN=5 or MN=19

Step-by-step explanation:

The points L and N are collinear, so we can visualize them on a right line as in Figure 1.  

First suppose that M is between L and N as in Figure 2. Then we can compute the distance between L and N as LN=LM+MN. Substracting LM from both sides, we obtain that MN=LN-LM=12-7=5.

For the other possibility, suppose that M is not between L and N as in Figure 3. Because LM<LN, it's impossible that M is located further to the right than N. Then M isn't at the right of L. Therefore, M is at the left of L, so L is between M and N, so the distance between M and N is given by MN=ML+LN=LM+LN=7+12=19.

--------------------------------------------------------------------------------------------------------------

I hope this helps

6 0
2 years ago
What is the slope of the line that passes through the points (2, 3) and (8, 6)
Rainbow [258]
Using rise over run and y2 - y1 over x2 - x1, the slope is 3/6, which reduces to 1/2.
7 0
2 years ago
Two families are planning a trip to Disney. The Smith family bought tickets for 2 adults and 3 children for $557. The Jones fami
emmainna [20.7K]

<em>An adult ticket costs $205 and a child ticket costs $49.</em>

<h2>Explanation:</h2>

Hello! Recall you have to write complete questions in order to find exact answers. Here I'll assume the complete question as:

<em>Two families are planning a trip to Disney. The Smith family bought tickets for 2 adults and 3 children for $557. The Jones family bought tickets for 2 adults and 1 child </em><em>for $459</em><em>. How much does and adult and child ticket cost?</em>

To solve this problem, we need to write a system of linear equations in two variables. So, we know some facts:

  • Two families are planning a trip to Disney.
  • The Smith family bought tickets for 2 adults and 3 children for $557.
  • The Jones family bought tickets for 2 adults and 1 child for $459.

Let:

x:Cost \ of \ ticket \ per \ adult \\ \\ y: Cost \ of \ ticket \ per \ child

For the Smith family:

Cost for the 2 adults:

2x

Cost for the 3 children:

3y

Total cost:

2x+3y=557

For the Jones family:

Cost for the 2 adults:

2x

Cost for the 1 child:

y

Total cost:

2x+y=459

So we have the following system of linear equations:

\begin{array}{c}(1)\\(2)\end{array}\left\{ \begin{array}{c}2x+3y=557\\2x+y=459\end{array}\right.

Subtracting (2) from (1):

\begin{array}{c}(1)\\(2)\end{array}\left\{ \begin{array}{c}2x+3y=557\\-(2x+y=459)\end{array}\right. \\ \\ \\ \begin{array}{c}(1)\\(2)\end{array}\left\{ \begin{array}{c}2x+3y=557\\-2x-y=-459\end{array}\right. \\ \\ \\ (2x-2x)+(3y-y)=557-459 \\ \\ 2y=98 \\ \\ y=49 \\ \\ \\ Finding \ x \ from \ (1): \\ \\ 2x+3(49)=557 \\ \\ 2x=557-147 \\ \\ 2x=410 \\ \\ x=205

Finally, <em>an adult ticket costs $205 and a child ticket costs $49.</em>

<em></em>

<h2>Learn more:</h2>

System of linear equations: brainly.com/question/13799715

#LearnWithBrainly

3 0
3 years ago
Item 1 A discounted concert ticket costs $14.50 less than the original price p . You pay $53 for a discounted ticket. Write an e
VLD [36.1K]

Answer:

$53 + $14.50 = x

x = $67.50

Step-by-step explanation:

Let us assume the original price be x

It is given that

The discounted ticket is $53

And, the discounted concert ticket cost is $14.50 lower than the orginial price

So, the equation is

$53 + $14.50 = x

Now the x is

= $53 + $14.50

= $67.50

Hence, x denotes the original price of the ticket

We simply added the above two amounts

5 0
3 years ago
Which number should come next in the series?<br> 1 - 1 - 2 - 3 - 5 - 8 - 13
Darya [45]
This is part of the Fibonacci sequence. The next number is 21. Look at how much each number increases and the number before it.

1+1=2 (the number after 1 and 1)
1+2=3 (the number after 1 and 2)
2+3=5 (the number after 2 and 3)

So to solve we add 13+8=21
8 0
3 years ago
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