275,000 km
The moons A, B, C form a right triangle with AC forming a hypotenuse with the diameter of the planet and the distance of both moons from the surface. So add A to the surface, plus the diameter of the planet, plus surface to c.
115000+45000+115000 = 275000
The consecutive angles are
Angle x
And
Angle z
Answer:36
becuse if you maltiply 15 by 3 it makes 45 and you can maltiply 12 by 3 and you will get your answer
Subtract 5y - 8 from 2y + 8
To subtract two numbers, we can do it like this:
10 - 4 = 10 + (-4)
That is, add the first number with the second number with its sign changed. For simple numbers, it does not make much difference, but for algebraic expressions, it can help a lot.
To subtract both binomials, we write the first plus the second with changed signs:
2y + 8
-5y + 8
---------------
-3y + 16
The result of the subtraction is -3y+16
Answer:
Necklace cost $144 and bracelet cost $48
Step-by-step explanation:
call x is the price of necklace, y is the price of bracelet
because necklace cost 3 time as much as the bracelet
=> 3x = y
A necklace and a bracelet cost $192
=> x + y = 192
=>set of equations
3x = y and x+y = 192
x= 3y and 3y + y = 192
=> y = 48 and x = 3 . 48 = 144
