Hi there, to answer this problem, you need to really think about what it is asking. In saying that mark is 5 years older than Juan, we know it is going to involve addition. Then, you simply need to think about the relation to Juan's age. In this case, Mark is older so you add to it. Hope this helped!

4 0

3 years ago

What is the mean, median, and mode of 6,2,3,4,4,2,8,5,2

bearhunter [10]

Answer:

Mode=2

Median=4

Step-by-step explanation:

Mode you add all the numbers and divide by the actual number of the numbers given.

Median you cancel the numbers from first to last until you reach the one in the middle that's going to be the median.

5 0

4 years ago

Jimmy purchased 15 tickets to a concert and spent $140. He purchased some children's tickets and some adult tickets. The childre

fiasKO [112]

Answer:

Jimmy purchased 8 of the children's ticket and 7 of the adult's ticket.

Step-by-step explanation:

Let c = children tickets

Let a = adult tickets

Given the following data;

Number of tickets = 15

Total amount spent = $140

Cost of each children ticket = $7

Cost of each adult ticket = $12

*Translating the word problem into an algebraic equation (system)*

For the total number of tickets;

$c + a = 15$ .........equation 1

For the total amount spent;

$7c + 12a = 140$ ..........equation 2

*Solving the linear equation by using the substitution method*

Making c the subject in equation 1:

$c = 15 - a$ .......equation 3

Substituting "c" into equation 2;

$7(15 - a) + 12a = 140$

Simplifying the equation, we have;

$105 - 7a +12a = 140$

$105 + 5a = 140$

Rearranging the equation, we have;

$5a = 140 - 105$

$5a = 35$

$a = \frac {35}{5}$

a = 5 (For the $12 adult ticket).

To find the number of children tickets;

Substituting "a" into equation 3;

$c = 15 - 7$

c = 8 (For the $7 children ticket).

4 0

3 years ago

PLEASE HELP 30 POINTS

Illusion [34]

On zero you should start 55 since she started with 55. Week 1 mark 79, week 2 mark 103, week 3 mark 127, week 4 mark 151, week 5 mark 175!!!
Hope that helps (:

8 0

3 years ago