All categories

3 years ago

What is 10% of 300 ........

Mathematics

2 answers:

ICE Princess25 [194]3 years ago

6 0

Answer:

Step-by-step explanation:

so 10% is 0.10 in decimal form

so to find the number you just multiply

300x0.10=30

Alinara [238K]3 years ago

4 0

Answer: 30

Step-by-step explanation: To find 10% of 300, first write 10% as a decimal by moving the decimal point two places to the left to get .10.

Next, the word "of" means multiply so we will multiply .10 by 300.

(.10) (300) = 30

Therefore, 10% of 300 is 30.

You might be interested in

My YouTube salary a month is 30,000$ divided by 30

BaLLatris [955]

30,000 divided by 30 is 1,000

4 0

3 years ago

Read 2 more answers

Find the 4th term of the expansion A B C D

Marysya12 [62]

Answer:

option-A

Step-by-step explanation:

We can use rth term binomial expansion formula

$(x+y)^n$

$T_r=(n,r-1)x^{n-(r-1)}y^{r-1}$

we are given

$(a-\sqrt{2})^8$

we can compare

$x=a,y=-\sqrt{2}$

n=8

r=4

now, we can find 4th term

$T_r=(8,4-1)a^{8-(4-1)}(-\sqrt{2})^{4-1}$

now, we can simplify it

$T_4=\frac{8!}{5!3!}\times -2\sqrt{2}a^5$

$T_4=56\times -2\sqrt{2}a^5$

$T_4=-112\sqrt{2}a^5$

5 0

4 years ago

Read 2 more answers

Help with #24!!! I don't get it. Please provide a clear and brief explanation! Thank you <3

Arte-miy333 [17]

So hmmm the band is going to charge her 750, for the whole gig, so that's a fixed amount, regardless of how many folks show up, 2 or 2,000

the caterer, charges 2.25 per head, because, the more heads, the more plates and glasses he has to make, more work for him

now, she wants to keep the charges between 2.75 and 3.25

now.. let's see her costs

750 from the band and 2.25 per head from the caterer, let's say "p" folks show up, so the caterer will then be charging 2.25*p or 2.25p

so her cost say C(p) = 750 + 2.25p

now, we dunno what C(p) is going to end up being, that depends on how many folks show up

now, we know "p" folks are going to show up, so, if "p" show up, the average cost will then be price * p

if the price, Natasha has in mind is 2.75, then C(p) is 2.75p
if the price, Natasha has in mind is 3.25, then C(p) is 3.25p

but whatever 750 + 2.25p is, is ok if it's greater than 2.75p
2.75p < 750 + 2.25p

and whatever 750 + 2.25p is, is not ok if it goes over 3.25p, it has to be less

3.23p > 750 + 2.25p

$\bf 2.75p\ \textless \ 750+2.25p\implies 2.75p-2.25p\ \textless \ 750\implies 0.5p\ \textless \ 750
\\\\\\
\cfrac{1}{2}p\ \textless \ 750\implies p\ \textless \ 2\cdot 750\implies \boxed{p\ \textless \ 1500}\\\\
-------------------------------\\\\
3.25p\ \textgreater \ 750+2.25p\implies 3.25p-2.25p\ \textgreater \ 750\implies \boxed{p\ \textgreater \ 750}\\\\
-------------------------------\\\\
\begin{cases}
p\ \textless \ 1500\\
p\ \textgreater \ 750
\end{cases}\iff 750\ \textless \ p\ \textless \ 1500\impliedby \textit{using the combined form}$

7 0

3 years ago

A company with a fleet of 150 cars found that the emissions systems of only 5 out of the 22 they tested failed to meet pollution

Ugo [173]

Answer: No, the percentage of the fleet out of compliance is not different from their initial thought.

Step-by-step explanation:

Since we have given that

n = 22

x = 5

So, $\hat{p}=\dfrac{x}{n}=\dfrac{5}{22}=0.23$

he company initially believed that 20% of the fleet was out of compliance. Is this strong evidence the percentage of the fleet out of compliance is different from their initial thought.

so, p = 0.2

Hypothesis would be

$H_0:p=\hat{p}\\\\H_a:p\neq \hat{p}$