Answer:
the last graph
Step-by-step explanation:
$1200+ $1400 = 2600
Answer:
1200 : 1400 = 6 : 7
The ratio is not in lowest terms so we found an equivalent ratio by simplifying.
Solution:
We can simplify the ratio 1200 : 1400 by dividing both terms by the greatest common factor (GCF).
The GCF of 1200 and 1400 is 200.
Divide both terms by 200.
1200 ÷ 200 = 6
1400 ÷ 200 = 7
Therefore:
1200 : 1400 = 6 : 7
Let Upper Level = x
Middle level = 2x+40
Lower level = 3x-50
The sum of those 3 has to equal 15,002 seats.
X + (2x+40) + 3x-50) = 15, 002
Simplify the left side by combining the like terms:
6x - 10 = 15,002
Add 10 to each side:
6x = 15,012
Divide both sides by 6 to solve for x:
X = 15012 / 6
X = 2502
The upper level is X , so has 2,502 seats.
Middle level = 2x +40 = 2(2502) +b40 = 5004 + 40 = 5,044 seats
Lower level = 3x-50 = 3(2502) -50 = 7506 - 50 = 7,456 seats
Answer: x = 8
<u>Step-by-step explanation:</u>
4x + 18 + 5x = 90
9x + 18 = 90 <em>Added like terms</em>
9x = 72 <em>Subtracted 18 from both sides</em>
x = 8 <em>Divided both sides by 9</em>
BONUS: The sum of these two angles is 90°, which means these angle are complementary.
