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3 years ago

15

6(x – 1) = 9(x + 2) solve for x

1 answer:

Mumz [18]3 years ago

6 0

It’s -8 the answer for your question

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4<br> Select the correct answer.<br> Which of these mappings is a function?

melomori [17]

Answer:

? i need a better explanation for ur questoin

Step-by-step explanation:

3 0

3 years ago

in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

$a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d$

$a_n=a_1+(n-1)d$

$33=8+(n-1)d$

$21=(n-1)d$

$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

$\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123$

Case 4: $n-1=7$ and $d=3$ . But

$\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123$

8 0

3 years ago

How many weeks will it take him to afford a car worth £1932

andreev551 [17]

7 hours a day
7 x €9.20 = €64.4 per day

6 days a week
€64.4 x 6 = €386.4 per week

Will:Mum = 5:2

386.4 / 7 = 55.2

Will: 55.2 x 5 = 276

After shares his wages, Will makes $276 a week

<span>1932 / 276 = 7 weeks</span>

<span>
</span>

<span>answer</span>

<span>7 weeks</span>

4 0

3 years ago

Mrs. Pender shows her students 2 sticks measuring 6 inches and 2 sticks measuring 8 inches. She asks the students to arrange the

Llana [10]

Answer:

Reggies makes sence

Step-by-step explanation:

5 0

3 years ago

What is the value of this expression?

Zepler [3.9K]

Answer:

-3

Step-by-step explanation:

Step 1: Solve (-2+(-1))^2/3 3

1. -2+(-1) = -3

2. (-3)^2 = 9

3. 9/3 = 3

Step 2: Solve (-4)^2-17 -1

1. 3/-1

Step 3: Simplify 3/-1 = -3. I hope this helped and please don't hesitate to reach out with more questions!

5 0

3 years ago