Answer: x = 14
Step-by-step explanation:
-x+14 = 0
Subtract 14 from both sides of the equation :
-x = -14
Multiply both sides of the equation by (-1) : x = 14
Answer:
61°
Step-by-step explanation:
Since the angles make up a full circle which is 360°, deduct all the degrees with numbers from 360°
360 - 65 - 50 - 62 = 183
x + 2x = 3 x
3x = 183
x = 183 ÷ 3 = 61
Answer:
irrational
Step-by-step explanation:
Answer:
1. -b^2+13b
2. 1.9y^2-1.4y+4
Step-by-step explanation:
1. -0.8b^2+7.4b+(5.6b-0.2b^2)
Simplify: -0.8b^2+7.4b+5.6b-0.2b^2
Add like terms: (-0.8b^2-0.2b^2)= -1b^2/-b^2 (7.4b+5.6b)= 13b
Answer: -b^2+13b
2. (7.3y-y^2+4)+0.5y^2-(8.7y-2.4y^2)
Simplify: 7.3y-y^2+4+0.5y^2-8.7y+2.4y^2
Add like terms: (2.4y^2-y^2)= 1.9y^2 (7.3y-8.7y)= -1.4y (don't forget about the 4)
Answer: 1.9y^2-1.4y+4
Solve this problem by setting up a proportion to model the number of boys to the total number of students than the class:
80/100=20/x
Now, cross multiply:
80x=2000
Then, divide 2000 by 80 to solve for x:
x=25
25 is the total number students in the class.
Hope this help
