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likoan [24]
2 years ago
7

1.Mario purchased 15 tickets to a football game for $13.50. How much would it cost to purchase 21 tickets? $ ____________

Mathematics
1 answer:
Mashcka [7]2 years ago
5 0

Answer:

1. $18.90

2. Every statement is true EXCEPT e

Step-by-step explanation:

For number 1. We first need to find how much one ticket costs. To find this we divide profit by number of tickets sold. So,

13.50/15 = $0.90

So to find the cost of 21 tickets we times the cost per ticket by 21

21 x 0.90 = 18.9

So $18.90

2.

They sold 6 cases in 40 minutes.

6/40 = 0.15

They sell 0.15 cases per minute

For a we wanna see if they can sell 27 cases in 180 minutes so

0.15 x 180 = 27

So a is true

B)

0.15 x 80 = 12

So b is true

C)

0.15 x 120 = 18

C is true

D)

0.15 x 160 = 24

D is true

E)

0.15 x 200 = 30

E is false

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creativ13 [48]

Using a system of equations, it is found that the unit prices are:

  • $2.25 for a bag of chips.
  • $1.50 for a liter of pop.
  • $1.75 for a chocolate bar.

For the system:

  • x is the unit price of a bag of chips.
  • y is the unit price of liter of pop.
  • z is the unit price for a chocolate bar.

From the table, the equations are:

2x + 2y + z = 9.25

3x + 4y + z = 14.50

x + 3y + 3z = 12

Replacing the <u>first equation on the second and the third:</u>

z = 9.25 - 2x - 2y

3x + 4y + z = 14.50

3x + 4y + 9.25 - 2x - 2y = 14.50

x + 2y = 5.25

x = 5.25 - 2y

x + 3y + 3z = 12

x + 3y + 3(9.25 - 2x - 2y) = 12

-5x - 3y = -15.75

5x + 3y = 15.75

Since x = 5.25 - 2y:

5(5.25 - 2y) + 3y = 15.75

-7y = -10.5

y = \frac{10.5}{7}

y = 1.5

Then:

x = 5.25 - 2y = 5.25 - 2(1.5) = 2.25

z = 9.25 - 2x - 2y = 9.25 - 2(2.25) - 2(1.5) = 1.75

The unit prices are:

  • $2.25 for a bag of chips.
  • $1.50 for a liter of pop.
  • $1.75 for a chocolate bar.

A similar problem, also solved using a system of equations, is given at brainly.com/question/14183076

4 0
2 years ago
I really need help!! Which box doesn't belong??
Marina CMI [18]

Answer:

I think it's C

Step-by-step explanation:

A is go up one time

B is go down one time

C is... not sure what's going on there

And D is multiply by 8

I'm confused.

7 0
2 years ago
"If you like rock-n-roll, then you like loud music." What is the converse of this statement?
Jobisdone [24]

Answer:

"If  you like loud music, then you like rock-n-roll"

Step-by-step explanation:

we know that

To form the converse of the conditional statement, interchange the hypothesis and the conclusion

In this problem we have

"If you like rock-n-roll, then you like loud music."

The hypothesis is "you like rock-n-roll"

The conclusion is "you like loud music"

interchange the hypothesis and the conclusion

The converse is

"If  you like loud music, then you like rock-n-roll"

5 0
3 years ago
Steven just got a new summer job painting fences in his neighborhood. He will be paid $7.25 an hour. His first customer paid him
mote1985 [20]

Answer:

a). The equation; 7.25 h-36.25=0

b). total number of hours Steven work=5 hours

Step-by-step explanation:

Part A

The expression for the total money earned is as follows;

T=E×h

where;

T=total earnings

E=earnings per hour

h=number of hours worked

In our case;

T=$36.25

E=$7.25

h=h

replacing;

36.25=(7.25×h)

36.25=7.25 h

The equation would be; 7.25 h=36.25, or 7.25 h-36.25=0

Part B

7.25 h=36.25

h=36.25/7.25

h=5

total number of hours Steven work=5 hours

5 0
2 years ago
Simplify completely the quantity 5 times x to the third power plus 10 times x to the 2nd power plus 15 times x all over 5 times
aleksley [76]

Answer:

i. think it 1032

Step-by-step explanation:

4 0
2 years ago
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