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3 years ago

Just Question B!

Mathematics

2 answers:

Rus_ich [418]3 years ago

5 0

Answer:

0.4 or 0.40

Step-by-step explanation:

There are 10 total numbers. 4 of them are in set B.

So, 4/10 are in set B.

The probability is 0.4 because 4 divided by 10 is 0.4.

ratelena [41]3 years ago

4 0

0.4 I think but if they say it’s wrong try 0.40

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You invest $25/month at a rate of 3.25% APR compounded monthly for 30 years. What is the total interest earned and final balance

VikaD [51]

The total interest earned is 40.75 and the final balance is 65.75

<u>Solution:</u>

Given, principle amount P = 25

Interest rate $r = 3.25\% = \frac{3.25}{100} = 0.0325$

Times compounded per year n = 12

Time in years t = 30

$Amount \ A=P\left(1+\frac{r}{n}\right)^{n t}$

On substituting the values we get

$A = 25 [ 1+ \frac{0.0325}{12}]^{12\times30}= 25 [2.63]= 65.75$

Interest I = A - P [since, A = P+I]

$\Rightarrow 65.75 - 25= 40.75$

7 0

3 years ago

What is a fraction less then 1/4

Lesechka [4]

Answer:

1/8, 1/12, 1/24, 1/100, and so on there are a lot

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is the product? Assume x greater-than-or-equal-to 0 (StartRoot 3 x EndRoot + StartRoot 5 EndRoot) (StartRoot 15 x EndRoot +

Nikitich [7]

Answer:

3x√5 + 6√(10x) + 5√(3x) + 10√6

Step-by-step explanation:

$(\sqrt{3x}+\sqrt{5})(\sqrt{15x}+2\sqrt{30})=\sqrt{3x}(\sqrt{15x}+2\sqrt{30})+\sqrt{5}(\sqrt{15x}+2\sqrt{30})\\\\=\sqrt{45x^2}+2\sqrt{90x}+\sqrt{75x}+2\sqrt{150}\\\\=\sqrt{5(3x)^2}+2\sqrt{10x(3)^2}+\sqrt{3x(5)^2}+2\sqrt{6(5)^2}\\\\=\boxed{3x\sqrt{5}+6\sqrt{10x}+5\sqrt{3x}+10\sqrt{6}}$

The applicable rules of roots are ...

(√a)(√b) = √(ab)

√(ab²) = b√a

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3 years ago

2x-1=3/4x+9<br> Help Me Brainilist to whoever explains the best

alexdok [17]

Answer:

x=8

Step-by-step explanation:

normally it would be 2x-1= $\frac{3}{4}$ x+9 so now we have to combine the x into one fraction which will be 2x-1= $\frac{3x}{4}$ +9 now for my way i will be taking the -1 to the other side and when that happens its going to become positive so now the answer will be 2x= $\frac{3x}{4}$ +10 ok so now we have to have the x's to the same side so i have to drag the fraction to the other side and making it positive which will conclude into 1.25x=10 and now 10 divided by 1.25 is 8 so the answer is x=8 (sorry for the ok nows) hope this helped

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4 years ago

Read 2 more answers

worty [1.4K]

Answer: to find the mean add up all the scores and then divide it by the number of scores that are there and to find the mode order the numbers lowest to highest and see which number appears the most

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3 years ago