Answer:
A score of 95 she must obtain on the fifth exam to have an average of 90 or better for the five exams
Step-by-step explanation:
average = sum of all terms / number of terms
average = 94 + 83 + 92 + 86 + x / 5
90 = 355 + x / 5
multiply both sides by 5,
90 * 5 = 355 + x / 5 * 5
450 = 355 + x
subtract 355 from both sides to get x alone
450 - 355 = 355 + x - 355
95 = x
Step-by-step explanation:
need staff how do u apply that
The integers are 1 and 2.
Explanation:
Use "x" to represent the smaller integer and "x+1" to represent the larger integer. The whole equation would be 6x=3(x+1). Here's how to solve it:
6x=3(x+1)
6x=3x+3
3x=3
x=1
The smaller integer value is solved. Plug that value into "x+1" to get the larger integer, which will be 2.
Answer: x = 111
Explanation: To find the missing angle, you first have to find the sun of the known angles.
75 + 36 = 111
From there you subtract it from 180, because the sun of all angles in a triangle add up to 180 degrees.
180 - 111 = 69
From there, you have the interior angle. The angle you are looking for is equal to the number you had originally found, 111.
