All categories

3 years ago

Evaluate the expression when c= -4 and y= 3 c-5y

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

-19

Step-by-step explanation:

If c = -4 and y = 3, replace c and y with their corresponding values in the expression, so that the expression will look like this: (-4) - (5 * 3).

Since multiplication comes before subtraction in PEMDAS, you would multiply 5 by 3, which gets you 15.

Now the expression is (-4) - (15). Then, you do the subtraction. -4 - 15 is equal to -19.

Does that help?

You might be interested in

Jack is planning to apply for a new credit card and needs to compare two offers. Complete the table based on the information in

nignag [31]

Answer:

Enjoy, Glad i could help

Step-by-step explanation:

4 0

2 years ago

The 9th graders are selling tickets to raise money for a class field trip. They are selling student tickets for $5 and adult tic

Marina CMI [18]

Answer:

Total number of adult tickets sold = 10

Total Number of Students tickets sold = 30

Step-by-step explanation:

Let $x$ be the number of student tickets sold.

Let $y$ be the number of adult tickets sold.

As per the question statement, total tickets sold are 40.

$x +y =40 ...... (1)$

Price of each student ticket = $5

Sales from students' tickets = Price of each students ticket $\times$ Number of students tickets sold

Sales from student's tickets = 5 $\times x$

Price of each adult ticket = $9

Sales from adult's tickets = Price of each adult's ticket $\times$ Number of adult tickets sold

Sales from student's tickets = 9 $\times y$

Total sales is done by students and adult tickets is $240 as per the question statement.

$\Rightarrow 5x + 9y = 240 ......(2)$

Solving equations (1) and (2) using elimination method:

Equation $(2) - 5 \times (1)$ :

$5x + 9y -5x-5y = 240-200\\\Rightarrow 4y = 40\\\Rightarrow y =10$

Total number of adult tickets sold = 10

Putting $y=10$ in equation (1):

$x+10 = 40\\\Rightarrow x = 30$

Total number of students tickets sold = 30

Total number of adult tickets sold = 10

Total Number of Students tickets sold = 30

8 0

3 years ago

Graph the function y=√x+1-4. Which point lies on the graph?

nataly862011 [7]

The answer is C (-1,-4)
I got the answer by graphing the equation and plotting each the points down to see which one lies on the graph

8 0

2 years ago

Solve 5x+y=-17 8x-3y=-18

Olenka [21]

Answer:

x = -3

y = -2

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

I need correct answer for this

dybincka [34]

Answer:

should be 82%

Step-by-step explanation:

Hope this helps!

6 0

2 years ago

Read 2 more answers