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inna [77]
4 years ago
8

a bag contains 8 red 4 blue and 4 yellow marbles what is the probrability of randomly choosing 2 blue marbles without replacemen

t write your answer as a decimal round to the nearest hundreth if needed​
Mathematics
1 answer:
enyata [817]4 years ago
8 0

Answer:

12.5%

Step-by-step explanation:

8+4+4=16

2/16*100=12.5

12.5%

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Express 5 times 10 cubed times 4.4 times 10 squared explain
tekilochka [14]
a^n\cdot a^m=a^{n+m}\\\\commutative\ property:a\cdot b=b\cdot a\\\\associative\ property:(a\cdot b)\cdot c=a\cdot(b\cdot c)


5\cdot10^3\cdot4.4\cdot10^2=(5\cdot4.4)\cdot(10^3\cdot10^2)=22\cdot10^{3+2}\\\\=22\cdot10^5=2,200,000

The\ scienitific\ notation:a\cdot10^n\ where\ 1\leq a < 10\ and\ n\in\mathbb{Z}\\\\22\cdot10^5=2.2\cdot10^{5+1}=2.2\cdot10^6
6 0
3 years ago
What is the sum of the first 5 terms of a geometric series with a sub 1 = 10 and r = 1/5?
Mice21 [21]

Answer:

a 1 = 10

a 2 = 10 * 1/5 = 2

a 3 = 2 * 1/5 = 2/5

a 4 = 2/5 * 1/5 = 2/25

a 5 = 2/25 * 1/5 = 2/125

S 5 = a 1 + a 2 + a 3 +a 4 + a 5= 10 + 2 + 2/5 + 2/25 + 2/125 =

= 1250/125 + 250/125 + 50/125 + 10/125 + 2/125 = <u> 1562 / 125</u>

5 0
3 years ago
Read 2 more answers
Michael reads 12 pages of a book in 18 minutes,8 pages in 12 minutes and 20 pages in 30 minutes. Is this a proportional relation
Gelneren [198K]

Answer:

y = 1.5x

Step-by-step explanation:

What you would do is divide all of the minutes by the amount of pages to find how long for each rate for one page. (ex. 18/12, michael reads 1 page in 1.5 minutes. 12/8, michael reads 1 page in 1.5 minutes. 30/20, michael reads one page in 1.5 minutes) Therefore, yes it is proportional, and the equation is y=1.5x (there is no y intercept)

4 0
3 years ago
77. The yearly cost of tuition (in-state) and required fees for
zlopas [31]

Answer:

a. \$3107

b. 17 years

c. The amount that is currently charged by the college you attend is much higher than the amount charged in two-year college in the present year.

Step-by-step explanation:

a.

f(x)=64x+2083

Here, x is a the number of years after 2000 and f(x) is the total cost.

To approximate the yearly cost of  attending a two-year college in the year 2016,  find f(16).

f(16)=64(16)+2083\\\\=1024+2083\\\\=\$3107

b.

To predict in what year the yearly  cost of tuition and required fees will exceed $3200, solve f(x)=3200

64x+2083=3200\\\\64x=3200-2083\\\\=1117\\x=\frac{1117}{64}\\\\ =17.45

So,

x is approximately equal to 17 years.

c.

The present year is 2020.

To approximate the yearly cost of  attending a two-year college in the present year, find f(20)

f(20)=64(20)+2083\\\\=1280+2083\\\\=\$3363

The amount that is currently charged by the college you attend is much higher than the amount charged in two-year college in the present year.

6 0
3 years ago
What is 36/63 in simplest form?
77julia77 [94]

36/63 has a GCF of 9.

(36÷9)/(63÷9) = 4/7

5 0
3 years ago
Read 2 more answers
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