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2 years ago

In a college of exactly 2920 students, exactly 55 % are male. What is the number of female students?

Mathematics

2 answers:

Annette [7]2 years ago

8 0

Answer:

1305 female students

Step-by-step explanation:

Total no. of students = 2900

Percentage of students male = 55%

No. of students male = 55% of 2900

= 55/100*2900

= 1595

No. of female students = 2900 - 1595 = 1305

katovenus [111]2 years ago

3 0

Answer:

1314

Step-by-step explanation:

First I found the number of male students

$\frac{x}{2920} =\frac{55}{100} \\\\160600=100x\\1606=x$

Then I subtracted the number of male students from the number of total students

$2920-1606=1314$

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Kristen invests $ 5745 in a bank. The bank 6.5% interest compounded monthly. How long must she leave the money in the bank for i

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In your case,

1. P=$5745, A=2P=$11490, n=12 (compounded monthly), r=0.065 (6.5%) and t is unknown. Then

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2. P=$5745, A=3P=$17235, n=12 (compounded monthly), r=0.065 (6.5%) and t is unknown. Then

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3. <u>1 choice:</u> P=$5745, n=12 (compounded monthly), r=0.065 (6.5%), t=5 years and A is unknown. Then

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<u>2 choice:</u> P=$5745, n=4 (compounded monthly), r=0.0675 (6.75%), t=5 years and A is unknown. Then

$A=5745\cdot \left(1+\dfrac{0.0675}{4}\right)^{4\cdot 5},\\ \\A=5745\cdot (1.0169)^{20}\approx \$8032.58.$

The best will be 2nd option, because $8032.58>$7936.39

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