<span>2x-1/4(12x+4)=3
</span>⇒ 2x -1/4*(12x) -1/4*4= 3 (distributive property)
⇒ 2x -3x -1= 3
⇒ -x= 3+1
⇒ -x= 4
⇒ x= -4
<span>
Final answer: x=-4~
</span>
The answer is D. 12
To find this you would add (5x+16) and (9x-4) and set them equal to 180, because angles on a straight line add up to 180:
5x+16+9x-4 = 180
Then you would solve that for x, and would get x=12
Hope this helps!
Answer:
(a)
(b)
Step-by-step explanation:
Given
Variation: Inverse proportional.
This is represented as:
See attachment for table
Solving (a):
First convert variation to equation
From the table:
So, we have:
Substitute 4 for k in
Solving (b): x when y = 25.
Substitute 25 for y in
Cross Multiply
Divide through by 25
Take positive square roots of both sides
Answer:
The numbers are 9 and 16
Step-by-step explanation:
Hi there! You are subtracting a negative number, which is basically the same thing as adding, because two negatives make a positive. B and C is out, because they do not fit the expression. You are actually adding both numbers and anytime you have to subtract a negative number, you add. When you do basic math, 4 + 7 is 11. Both numbers are negative and D does not work, because you're adding from a negative number. The only answer choice that has the expression is A. The answer is A.