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1 answer:
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Answer:
$40
Step-by-step explanation:
Fraction Navin gave his brother = 1/5
Remainder = 1 - 1/5
5/5 - 1/5 = 4/5
Fraction Navin gave his sister = 4/5 x 5/8 = 1/2
total amount Navin gave his siblings :
=
Fraction that remains = 1 - 7/10
10/10 - 7/10 = 3/10
Let a = amount Navin has initially
3/10 x a = 12
a = (12 x 10) / 2 = $40
Answer:
- 8
Step-by-step explanation:
Note that is the slope of the tangent at x = a
Differentiate using the power rule
(a
) = na
Given
y = 3x² - 2x + 5, then
= 6x - 2
x = - 1 : = 6(- 1) - 2 = - 6 - 2 = - 8
The person saved $7.32
