28x + 24y + 40 hurry

Mathematics

1 answer:

Pavel [41]3 years ago

3 0

Answer:

4(7x+6y=10)

Step-by-step explanation:

ask in comments for steps if you need them

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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]

Let the original number of seats in a row be x;
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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3 years ago

A florist has an order to make flower bouquets. the order calls for the use of 45 roses and 63 carnations. each bouquet made wil

Marta_Voda [28]

Find the GCF of both numbers
45-1,3,5,9,15,45
63-1,3,7,9,21,63
So each bouquet would have 9 of both rose and carnations

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3 years ago

Find the measure of each angle.

Galina-37 [17]

Given:

Given that the isosceles trapezoid JKLM.

The measure of ∠K is 118°