Answer:
Step 1
Swap sides so that all variable terms are on the left hand side.
-2x-8=y−2x−8=y
Step 2
Add 88 to both sides.
-2x=y+8−2x=y+8
Step 3
Divide both sides by -2−2.
\frac{-2x}{-2}=\frac{y+8}{-2}
−2
−2x
=
−2
y+8
Hint
Undo multiplication by dividing both sides by one factor.
Step 4
Dividing by -2−2 undoes the multiplication by -2−2.
x=\frac{y+8}{-2}x=
−2
y+8
Hint
Undo multiplication.
Step 5
Divide y+8y+8 by -2−2.
x=-\frac{y}{2}-4x=−
2
y
−4
Hint
Divide.
Solution
x=-\frac{y}{2}-4x=−
2
y
−4
Step-by-step explanation:
yan po sana makatulong
The three scores are 86, 74, and an unknown score x. The average (i.e. the sum divided by how many there are) is 80, so we have
Multiply both sides by 3 and you get
Subtract 160 from both sides to get
Note: you could solve this exercise very quickly if you notice that the two numbers, 86 and 74, are symmetrical with respect to 80, which is the average. So, the third number must be the average.
Answer:
the answer would be x=3,1
Answer:
The measure of angle E is 45 degrees
Step-by-step explanation:
To get the measure if angle E, we use the appropriate trigonometric ratio
From the question, EF is the hypotenuse since it faces the right angle
EG is adjacent to angle E
so we are going to use the trigonometric ratio that connects adjacent to the hypotenuse
This trigonometric ratio is the cosine
It is the ratio of the adjacent to the hypotenuse
Thus,
we have it that;
Cos E = EG/EF
cos E = 6√26/12√13
E = arc Cos ( 6 √26/12 √13)
E = 45 degrees
