Create a system of equations
x + y = 123
5x + y = 343
I use substitution
y = 123 - x
5x + 123 - x = 343
4x + 123 = 343
4x = 220
x = 55
Plug in
x + y = 123
55 + y = 123
y = 68
Check
5x + y = 343
5(55) + 68 = 343
275 + 68 = 343
343 = 343
Answer:
the answer is 1350
Step-by-step explanation:
add 450 together three times or multiply by 3
450 x 3 = 1350
Answer:
A^(2) + B^(2) = C^(2)?????????????
Step-by-step explanation:
that's an isosceles triangle, not a right-angle triangle
Answer:
-12/5 = -1 2/5 = -1.4 and 6 1/2 = 13/2 = 6.5
Step-by-step explanation:
<span>πn < x < </span>π + <span>π<span>n
</span>In interval notation: (</span><span>πn, </span>π + <span>π<em>n</em>)</span><span>
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