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gigi1103
 one year ago
Each car in a rental fleet is either red or white, and there are 75 cars total. There are three more white than twice the number of red cars. How many cars are white?
gigi1103
 one year ago
Each car in a rental fleet is either red or white, and there are 75 cars total. There are three more white than twice the number of red cars. How many cars are white?

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Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2well, let's let r = number of red cars and w = number of white cars we can write two equations using the information in the problem r + w = 75 w = 2r + 3 know where to go from here?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2well, ok, I'll walk you through step by step like the problem says, there are 75 total cars, so r + w = 75 does that make sense?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2the problem also says "there are three more white than twice the number of red cars" so w = 2r + 3 with me so far?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2so we put them together: r + w = 75 w = 2r + 3 now, the second equation says w = 2r + 3, so we can replace "w" with "2r+3" whenever we see w now, going back to the first equation we have: r + w = 75 r + (2r + 3) = 75 does that make sense?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2ok, so we have r + (2r + 3) = 75 can you solve for r now?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2uh, not quite we have r + (2r + 3) = 75 let's combine the r's together r + 2r = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2just add them together r + 2r = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2r is just a letter that takes the place of a number think of it this way: one dog + two dogs = three dogs one r + 2r = 3r does that make sense?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right... r + 2r = 3r so far we have: 3r + 3 = 75 now subtract 3 from each side, what do you get?

gigi1103
 one year ago
Best ResponseYou've already chosen the best response.0these are the answers A) 24 B) 47 C) 48 D) 51

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.23r + 3 = 75 now subtract 3 from each side, what do you get?

gigi1103
 one year ago
Best ResponseYou've already chosen the best response.0how do you subtract on two sides?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2there are two sides of the equation 3r + 3 and 75 we start off with 3r + 3 = 75 now we take away 3 from each side... 3r + 3  3 = 75  3 can you take it from here?

gigi1103
 one year ago
Best ResponseYou've already chosen the best response.0ok so 33=0 753=2 3r+0=72?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2yeah! 3r = 72 now divide both sides by 3

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, so r = 24 now, that means we have 24 red cars, now we can find the number of white cars using w = 2r + 3 so w = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2not quite... r = 24, so we replace "r" with "24" so w = 2r + 3 = 2(24) + 3 = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2check your math again 2*(24) = 3 = ?

gigi1103
 one year ago
Best ResponseYou've already chosen the best response.0ok didnt see the times

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, so w = 51 and 51 is our answer

gigi1103
 one year ago
Best ResponseYou've already chosen the best response.0can you help with one more?
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