Answer:
C
Step by step
3x2 - 5x+1 + 2x2 + 9x-6
Combine like terms
5x2 + 4x - 5
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s=-3
<em /><em>10-s=? </em><u>Substitute s:</u>
10-(-3)=10+3=13
10-s=13
Answer: 13
9514 1404 393
Answer:
Step-by-step explanation:
Let x represent the amount invested at 13%. Then (3x+199) is the amount invested at 12%. The total interest earned in 1 year is ...
(13%)(x) +(12%)(3x+199) = 1561.50
0.49x +23.88 = 1561.50 . . . . simplify
0.49x = 1537.62 . . . . . . . . . . subtract 23.88
x = 3138 . . . . . . . . . . . . . . . . divide by 0.49
3x+199 = 9613
$3138 was invested at 13%; $9613 was invested at 12%.
Answer:
0.10
Step-by-step explanation:
<span>8d – 4d – 6d – 8 = 2d
Combine common terms:
-2d - 8 = 2d
Add 2d to both sides:
-8 = 4d
Swtich sides:
4d = -8
Divide both sides by 4:
d = -2
Answer: - 2
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