Answer:the answer would be B
Step-by-step explanation:
the operation is +
5x+4y = 73
-4x + 4y = -8
5x + 4y -(-4x+4y) = 73 -(-8)
5x + 4y + 4x - 4y = 81
5x + 4x + 4y - 4y = 81
9x = 81
x = 81÷9
x = 9
Substitute x = 9 into any of the equations to find y.
5(9) + 4y = 73
45 + 4y = 73
4y = 73 - 45
4y = 28
y = 28÷4
y=7
Answers :
x = 9
y = 7
add the 2 numbers:
89 + 42 = 131 feet below the surface,
which can also be written as -131 feet
Answer:
rational numbers are numbers that can be written as the ratio of two integers
<span>Triangle Inequality Theorem
</span><span>the sum of two side lengths of a triangle is always greater than the third side.
</span>
5+8=13
your answer = no
