2 years ago

A number is multiplied by 3,and 7 is added to it to get the result 25.Find the number.

Mathematics

1 answer:

german2 years ago

4 0

Answer:

Step-by-step explanation:

25-7=18 18/3= 6.

6x3= 18 18+7= 25

THE ANSWER IS 6

You might be interested in

Tom and his friends decided to go on a hiking gtrip. They started at 45 feet above sea level and went up the mountain at a rate

Phantasy [73]

What the question? Tell me then I can maybe help

5 0

2 years ago

Help please solve the following equation algebraically show your work

maks197457 [2]

Answer:

'16' is the answer.

Step-by-step explanation:

So, 6=x+2 divided by 3. In this case, we can multiply 6 and 3 which makes

18 = x+2. We substract 2 from 18 and the answer is 16. If you don't understand anything, you can ask by leaving a comment below. Thanks.

16+2 = 18/3 = 6

3 0

2 years ago

A country's population in 1994 was 182 million. In 2002 it was 186 million. Estimate the population in 2004 using the exponentia

iogann1982 [59]

$\bf =ae^{kt}\qquad 
\begin{cases}
1994\impliedby \textit{year 0, starting point}\\
t=0\qquad P=182
\end{cases}\implies 182=ae^{k0}
\\\\\\
182=a\cdot e^0\implies 182=a\cdot 1\implies 182=a
\\\\\\
thus\qquad P=182e^{kt}\\\\
-------------------------------\\\\$

$\bf P=182e^{kt}\qquad 
\begin{cases}
2002\impliedby \textit{8 years later}\\
t=8\qquad P=186
\end{cases}\implies 186=182e^{k8}
\\\\\\
\cfrac{186}{182}=e^{8k}\implies ln\left( \frac{93}{91} \right)=ln(e^{8k})\implies ln\left( \frac{93}{91} \right)=8k
\\\\\\
\cfrac{ln\left( \frac{93}{91} \right)}{8}=k\implies 0.0027\approx k\implies \boxed{P=182e^{0.0027t}}$

what's the population in 2004? well, from 1994 to 2004 is 10 years later, so t = 10

plug that in, to get P for 2004

3 0

3 years ago

Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 2000 word

Sauron [17]

If he types 40 words a minute, he can type 2000 words in 50 minutes you can solve this by doing 40*50 the number of hours would be less than one

8 0

2 years ago

ben brought two pizza to a party . he says that since 1/4 of each pizza left,the same amount of each pizza is left. What is his

bearhunter [10]

Since the 1/4 of each pizza left :

Which means that :
Pizza 1 = 1/4 pizza Left
Pizza 2 = 1/4 pizza Left

i think there is no error in what's ben saying

7 0

2 years ago