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From January 1, 1991, to January 1, 1993, the number of peop 11 Oct 2013, 17:14
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From January 1, 1991, to January 1, 1993, the number of people enrolled in health maintenance organizations increased by 15 percent. The enrollment on January 1, 1993, was 45 million. How many million people, to the nearest million, were enrolled in health maintenance organizations on January 1, 1991 ?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42
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B
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From January 1, 1991, to January 1, 1993, the number of peop 11 Oct 2013, 17:33
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jlgdr
From January 1, 1991, to January 1, 1993, the number of people enrolled in health maintenance organizations increased by 15 percent. The enrollment on January 1, 1993, was 45 million. How many million people, to the nearest million, were enrolled in health maintenance organizations on January 1, 1991 ?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42
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1.15x=45 --> 23/20*x=45 --> x=45*20/23=900/23=~39.

Answer: B.
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From January 1, 1991, to January 1, 1993, the number of peop 06 Nov 2019, 18:28
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jlgdr
From January 1, 1991, to January 1, 1993, the number of people enrolled in health maintenance organizations increased by 15 percent. The enrollment on January 1, 1993, was 45 million. How many million people, to the nearest million, were enrolled in health maintenance organizations on January 1, 1991 ?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42
Show more


Jan 1, 1991 = x no. of people enrolled in health maintenance organization
Jan 1, 1993 = 45 million

equation:
x+0.15x= 45 million
1.15x= 45 million
x= approx 39.1 million therefor, Ans choice (B)
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From January 1, 1991, to January 1, 1993, the number of peop 01 Sep 2020, 10:27
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jlgdr
From January 1, 1991, to January 1, 1993, the number of people enrolled in health maintenance organizations increased by 15 percent. The enrollment on January 1, 1993, was 45 million. How many million people, to the nearest million, were enrolled in health maintenance organizations on January 1, 1991 ?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42
Show more

From January 1, 1991, to January 1, 1993, the number of people enrolled in health maintenance organizations increased by 15 percent.
Let x = the number of enrolled people on January 1, 1991
So, 1.15x = the number of enrolled people on January 1, 1993

The enrollment on January 1, 1993, was 45 million.
We can write: 1.15x = 45 (million)
Solve: x = 45/1.15 ≈ 39.1

Answer: B

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From January 1, 1991, to January 1, 1993, the number of peop 01 Sep 2020, 11:48
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jlgdr
From January 1, 1991, to January 1, 1993, the number of people enrolled in health maintenance organizations increased by 15 percent. The enrollment on January 1, 1993, was 45 million. How many million people, to the nearest million, were enrolled in health maintenance organizations on January 1, 1991 ?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42
Show more
\(\frac{45}{115}*100\) ~ \(39\), Answer must be (B)
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From January 1, 1991, to January 1, 1993, the number of peop 15 Nov 2021, 11:24
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Instead of calculating 45/1.15, we can use answer choices to arrive at answer.

Let's pick easy no. - Option C
15% of 40 = 10% of 40 + 5% of 40 (whenever number like 15% or 5% are given, break down because calculating 10% is easy)
= 4 + 4/2
= 6
40+6 = 46 mil, so answer must be little less than 40, select B or do a quick approx. for 39 with the above approach
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From January 1, 1991, to January 1, 1993, the number of peop 27 May 2023, 08:57
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To find the number of million people enrolled in health maintenance organizations on January 1, 1991, we need to determine the enrollment before the 15 percent increase.

Let's assume the enrollment on January 1, 1991, was x million.

The enrollment on January 1, 1993, increased by 15 percent, so we have:

x + 0.15x = 45

Combining like terms:

1.15x = 45

Dividing both sides by 1.15:

x = 45 / 1.15

Using a calculator, we find:

x ≈ 39.1304

Rounding to the nearest million, we get:

x ≈ 39 million

Therefore, approximately 39 million people were enrolled in health maintenance organizations on January 1, 1991.

The closest option to this value is (B) 39.
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From January 1, 1991, to January 1, 1993, the number of peop 27 Oct 2025, 10:10
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