5x = 2x + 9, where 5x > 0 and 2x + 9 > 0 ;
Then, 3x = 9 ;
Then, x = 3 ;
Verify : 5 × 3 = 2 × 3 + 9 ;correct !
5 × 3 > 0 ; correct !
2 × 3 + 9 > 0; correct !
Answer:
Percentage of interest at which the money is invested = 5%
Time for which the money is invested = 3 years
The final amount after 3 years = $820
Let us assume the principal amount = x dollars
We can conclude that the principal amount invested was $708.35.
Answer:
okay
Step-by-step explanation:
if you want someone to help you you should probably put a question on here lol
Answer:
a)12
b)1297.8( not sure for this)
c)77
d)1989
Step-by-step explanation:
12÷3+(4×2)
12÷3+8
4+8
12.
309×152÷(12×3)
309×152÷36
309×4.2
1297.8.
1988-1911
77
2021-(16×2)
2021-32
1989
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