Answer:
inverse operations (KristaKingMath)
Answer: Inverse variation
Let’s choose the first one, and do the proportions.
x/30 = 90/100
Cross multiply and you have
100x = (30)(90)
100x = 2700
x = 27
And the fourth one: multiply by the decimal equivalent of the percent.
90% = 90/100 = 0.9
0.9 x 30 = 27
You chose these because your “online tutor” finds them easiest to explain XD
Answer:
x = 15
Step-by-step explanation:
Opposite angles are equal. Therefore, x = 60 - 45. Which is 15.
Answer:
(52x + 1) - 3 • (5x + 1)) + 10 = 0
37x + 8 = 0
3.1 Solve : 37x+8 = 0
Subtract 8 from both sides of the equation :
37x = -8
Divide both sides of the equation by 37:
x = -8/37 = -0.216
x = -8/37 = -0.216
