Let x be the number
2x - 7 + 5x
=7x-7
Answer:
The Answer is B
Step-by-step explanation:
A = 8,000(1 + 0.045)12
i just got it right
Answer:
12°, 78°, 90°
Step-by-step explanation:
let the third angle be x then the second angle is 7x - 6
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
x + 7x - 6 + 90 = 180, that is
8x + 84 = 180 ( subtract 84 from both sides )
8x = 96 ( divide both sides by 8 )
x = 12
Thus second angle = 12° and third = 7(12) - 6 = 84 - 6 = 78°
The 3 angles are 12°, 78° and 90°
The answer is true- A proportion is an equation showing equivalent of two ratios or rates
