Write the rate as a unit rate.64 ounces in 8 cupsplz help me
1 answer:
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Answer:
C and B
Step-by-step explanation:
(6)
×
← cancel 3x - 7y on numerator and denominator
= ×
=
=
→ C
(7)
÷
Factorise the denominators of both fractions
x² - 9 = x² - 3² = (x - 3)(x + 3) ← difference of squares
4x - 12 ← factor out 4 from each term
= 4(x - 3)
Then rewrite as
÷
← cancel 8 and 4 by 4
= ÷
• leave first fraction, change ÷ to × , turn second fraction ' upside down'
= ×
← cancel x - 3 on numerator and denominator
= ×
← cancel 2 and 6 on numerator and denominator
= → B
Solution: We know that formula for continuously compound interest is:
Where A is the future amount $900 x 2 = $1800
P is the principal investment $900
e is the eular's constant
r is rate of interest 0.09
t is the time ( to be found)
Therefore we have:
Taking natural log on both sides
Therefore it will take 7.702 years to double the amount