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3 years ago

Can I plss have an answer on this i need it ASAP plss

Mathematics

1 answer:

nordsb [41]3 years ago

4 0

WHAT DOES THIS MEAN???... i needa think abt this one

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Three consecutive numbers have a sum of 366, what is the largest consecutive number of the three?

Llana [10]

Answer: 123

Step-by-step explanation: TO solve problems like this, you should assign a variable to the lowest number, lets just say n. From here, since we know the numbers are consecutive, we can see that the numbers are n, n+1, and n+2. Therefore:

n(first number) + (n+1)(second number) +(n+2) (3rd number) =366

>n+n+1+n+2=366

3n+3=366

3n=363

n=121

n+2=123

3 0

3 years ago

A series contains 18 numbers and has a sum of 4,185. The last number of the series is 275. What is the first number?

N76 [4]

If the series is made up of numbers in an arithmetic progression, you have

$\displaystyle\sum_{n=1}^{18}a_n=\sum_{n=1}^{18}(a_1+(n-1)d)=18a_1+153d=4185$

where $a_1$ is the first term and $d$ is the common difference between terms.

Since the last term in the series is $a_{18}=275$ , you have

$a_{18}=a_1+(18-1)d\implies a_1+17d=275$

Solve the system

$\begin{cases}18a_1+153d=4185\\a_1+17d=275\end{cases}$

and you'll find that the first term is $a_1=190$ (with $d=5$ ).

5 0

4 years ago

Evaluate 3x for x = −2, x = 1, and x = 3. Question 18 options: A) 1∕3, 0, 9 B) 1∕9, 3, 27 C) 9, 3, 27 D) 1∕9, 9, 27

icang [17]

Answer: B) 1/9, 3, 27

Step-by-step explanation:

Here, we need to evaluate $3^x$ for $x = -2, x = 1, \text{ and } x = 3.$

So, we substitute values of x in the given function.

At x= -2, we have

$3^{-2}=\dfrac{1}{3^2}=\dfrac{1}{9}\ \ \ [\because\ a^{-n}=\dfrac{1}{a^n}]$

At x= 1, we have

$3^1=3$

At x= 3

$3^3=3\times3\times3=27$

So, the values of $3^x$ for

Thus, the correct answer is B) 1/9, 3, 27

7 0

3 years ago

Please tell me how to do it and not the actual answer! I am allowed to use calculators for this BTW. Thanks!

Sauron [17]

These three individual items take 1/4, 1/6, and 1/8 of the budget. The part of the budget that they take all together is the sum of those individual parts. You need to add up 1/4, 1/6, and 1/8. To do that, you'll need to put all three fractions over a common denominator first, the

8 0

3 years ago

Select all the factor pairs. What are the factor pairs of -144 that add to 0.

Yanka [14]

-12 and 12 are the aswer

7 0

3 years ago

Can I plss have an answer on this i need it ASAP plss​

Can I plss have an answer on this i need it ASAP plss