Ask question

Ask question

All categories

jarptica [38.1K]

3 years ago

15

Math I NEED HELP LOOK AT THE IMAGE ALGEBRA IS KILLING ME

1 answer:

Tanya [424]3 years ago

4 0

Answer:

n = 18

Step-by-step explanation:

I found the ratio between the 2 similar triangles by divide 9 by 4. After I found the ratio to be 9:4, I simply multiplied 8 by 9/4. This gave me 18 as the answer.

You might be interested in

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

Please help ASAP pleaseeee no links or fake answers

stira [4]

1) 50x30
2) 2000+409
3) 500+800

6 0

3 years ago

A pet supply chain called Pet City has 5 hamsters and 10 gerbils for sale at its Lanberry location. At its Milford location, the

Vlad1618 [11]

Answer:

Milford location has a higher ratio of hamsters to gerbils.

Step-by-step explanation:

Given:

A pet supply chain called Pet City has 5 hamsters and 10 gerbils for sale at its Lanberry location.

At its Milford location, there are 13 hamsters and 16 gerbils.

Now, to find the location who has a higher ratio of hamsters to gerbils.

Ratio of hamsters to gerbils at Lanberry location = 5:10.

$=\frac{5}{10}=0.50$

Ratio of hamsters to gerbils at Milford location= 13:16.

$=\frac{13}{16} =0.8125$

<em>So, 0.8125 > 0.50.</em>

<em>Thus, </em><u><em>13:16 > 5:10.</em></u><em> </em>

Therefore, Milford location has a higher ratio of hamsters to gerbils.

4 0

3 years ago

A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the pl

ololo11 [35]

I would say about $10 about 1/6th the time

4 0

3 years ago

Read 2 more answers

Tina placed a 12 meter rope along one side of the bicycle path. She hung a ribbon on each end of the rope and every 3 meters in-

olga_2 [115]

Answer:

4

Step-by-step explanation:

If the tape is 12m,

she hung the tape in between every 3m, and at both ends

0, 3, 6, 9, 12

these are the lengths she hung ribbons at

Total number of ribbons = 4

A is correct

5 0

4 years ago