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ser-zykov [4K]
3 years ago
11

A company makes 6 black cars for every 4 red cars if the company makes 48 red cars how many black cars did they make?

Mathematics
2 answers:
Masja [62]3 years ago
6 0

48/4=12

12*6=72 black cars


Vladimir [108]3 years ago
5 0

we know that the ratio of black cars to red cars is 6:4.

since there are 48 red cars we want to find out how many black cars were made. to do that we do (48/4) which equals to 12. then we multiply it by our ratio (12*6):(12*4) which will equal to 72:48

so in total 72 black cars were made

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Rectangular classroom seats 72 students. If the seats were rearragned with 3 more seats rows in each row, the classroom would ha
Gre4nikov [31]
<span>Let the original number of seats in a row be x;
</span>Let the number rows be y;

( x + 3) * (y - 2 )= 72 and x * y = 72 => 72 + 3 * y - 2 * x = 72 => 3 * y = 2 * x;
=> x is divisible by 3;

1. x = 3 => y = 72 / 3 => y = 24;
2. x = 6 => y = 72 / 6 => y = 12;
3. x = 9 => y = 72 / 9 => y = 8;
4. x = 12 => y = 72 / 12 =. y = 6;
5. x = 24 =. y = 72 / 24 => y = 3;
6. x = 36 => y = 72 / 36 => y = 2;
7. x = 72 => y = 72 / 72 => y = 1;

My analysis tell me that the right answer is 9 seats in a row and 8 rows;
The original number in each row is 9.
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Which ordered pair is a solution of the equation below? y=-7+2x?
Maru [420]
The answer to this question is:
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