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sammy [17]
3 years ago
7

Lucy earned $400 and $550 in interest the last 2 years. Describe the average interest she should earn in each of the next 3 year

s so that her total earnings over the 5-year period are at least $2300. A) She must average $450 per year. B) She must average $900 per year. C) She must average $1350 per year. D) She must average $1800 per year.
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
7 0

Answer:

If she gets 450 for 3 years plus 400 plus another 500 she would get exactly 2300.  

Step-by-step explanation:

450 x 3 = 1350 + 550 = 1900 + 400 = 2300

(450 x 3) + 550 + 400 = 2300


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Evaluate the definite integral using the graph of f(x)<br> (Image included)
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\displaystyle \int_3^5 f(x) \, dx = \int_3^4 f(x) \, dx + \int_4^5 f(x) \, dx = \int_3^4 f(x) \, dx - \int_3^4 f(x) \, dx = \boxed{0}

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8 0
2 years ago
PLEASE HELP!
Orlov [11]
We have that
<span>If (5x-4+13x=5) -------------->  then x=1/2
Step 1
</span>let's substitute the value of x = (1/2) in the expression [5x-4+13x] and verify its result
5*(1/2)-4+13*(1/2)
(5/2)-4+(13/2)
(5-4*2+13)/2----------> (5-8+13)/2=10/2=5
then 
5=5-----------> <span>the value of x = (1/2) satisfies equality</span>


3 0
3 years ago
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