Answer:
3) x = 15; 95 and 85 4) x = 12; 98 for both angles
Step-by-step explanation:
2x + 65 + 3x + 40 = 180 Set the equations equal to 180
5x + 105 = 180 Combine like terms
- 105 - 105 Subtract 105 from both sides
5x = 75 Divide both sides by 5
x = 15
Plug 15 into both equations
2(15) + 65 = 95
3(15) + 40 = 85
4) 5x + 38 = 9x - 10 Set the equations equal to each other
- 5x - 5x Subtract 5x from both sides
38 = 4x - 10
+ 10 + 10 Add 10 to both sides
48 = 4x Divide both sides by 4
12 = x
Plug 12 into both equations
5(12) + 38 = 98
9(12) - 10 = 98
Answer:
Step-by-step explanation:
√25 * √9 = √(5*5) * √3*3)
= 5 * 3 = 15
Answer:
1/-8
Step-by-step explanation:
You put the -8 into fraction form -8/1, and you switch the denominator and numerator and you get 1/-8 or -1/8. In decimal form that would be -0.125
You would just multiple the two numbers have and then you get the answer
Answer:
Step-by-step explanation:
We need to find the quantity demanded if the price of the shed is 1480$. Hence:
Sustract 1480 to both sides:
Multiply both sides by 
We have a quadratic equation, we can solve it using the cuadratic formula or simply factoring it:
Now the solutions are given by:
Since we look for a coherent answer we take the positive solution 
So the quantity demanded is
