Answer:
x = 17/4 = 4.25
Step-by-step explanation:
We assume your multiplication symbol (×) is intended to be a variable (x).
Simplifying, we have ...
17 -10x +45 = 6x -10 +4
68 = 16x
68/16 = x = 17/4 = 4.25
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<em>Check</em>
17 -5(2(4.25) -9) = -(-6(4.25) +10) +4
17 -5(8.50 -9) = -(-25.5 +10) +4
17 -5(-0.5) = 15.5 +4
17 +2.5 = 19.5 . . . . . . true
146 feet below the surface
Answer
D
Explanation:
I got it right on the test
1 / 3^5
1/ 243
3^4 ÷ 3^9
We know that a^b ÷ a^c = a^ ( b-c)
3 ^ ( 4-9)
3^ -5
We can rewrite this as a^-b = 1/ a^b
We know that 3^5 = 243
x=6
/AB/=2x+12
/BC/=5x+10
3x+2=5x-10 subtract 2 from both sides
3x=5x-12 subtract 5x from both sides
-2x=-12 divide both sides by -2x
x =6
