Maddy’s parents gave her a prepaid debit card to use for her monthly expenses. At the beginning of each month her parents add 50$ to the card. The card can have a negative balance, but if it does she charged a 10$ service charge. Maddy’s monthly expenses cell phone bill. Maddy’s January expenses- bought her friend a gift for 15.53, went to the movies for 13.75, bought three pairs of earrings at 4.75 each. Maddy’s February expenses are she bought frozen yogurt for 4.45 and went to the movies for 10.05. Maddy’s March expenses is she went shopping and spent 18.20 and bought a pretzel for 3.25. Maddy’s April expenses are age bought frozen yogurt twice for 4.50 each and went shopping and spent 19.14. She is hoping to buy a 40 ticket to imagine dragons covert in the end of April. Will she have enough money on her card to purchase the ticket

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

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step-by-step explanatio89

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

the answer is 11.2 (i know i’m late)