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3 years ago

14

Barbara found that six of the 24 students in her class on a cell phone what is the ratio of students that only sell phone to stu

dents that do not? Explain your reasoning to a classmate.

1 answer:

4vir4ik [10]3 years ago

7 0

Answer:

6:24 or 1:4

Step-by-step explanation:

If you don't have to simplify, then the answer would be 6:24, but if you do, then the answer would be 1:4.

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Solve by unfolding: a0=2, and, n>=1, a_n=7a_n-1.

vodomira [7]

We are told that the first term is 2. The next term is 7(2) = 14; the third term is 7(14) = 98. And so on. So, the first term and the common ratio (7) are known.

The nth term of this geometric series is a_n = 2(7)^(n-1).

Check: What is the first term? We expect it is 2. 2(7)^(1-1) = 2(1) = 2. Correct.

What is the third term? We expect it is 98. 2(7)^(3-1) = 2(7)^2 = 98. Right.<span />

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3 years ago

Anna is planning a big birthday bash for her sixteenth birthday party and wants to invite as many people as possible but she has

Hitman42 [59]

P=(500-100)÷6.50
p=400÷6.50
p=6.15

7 0

4 years ago

Read 2 more answers

What is a 10% margin increase on 1,810.69?

Elis [28]

Answer:

1991.759

Step-by-step explanation:

1810.69×%10=181.069

1810.69+181.069=1991.759

7 0

2 years ago

Luetta is shopping and find a $200 video game that is mark down by 5% how much will be taken off the price in dollars

viva [34]

Answer:

$10.00

Step-by-step explanation:

$200 x . 05 = $10.00

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3 years ago

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He coordinates of the vertices of a polygon are (−2, −2) , (−2, 3) , (2, 4) , (3, 1) , and (0, −2) .

Nitella [24]

Answer: The perimeter is 17.52

Step-by-step explanation:

1. You can plot the points, as you can see in the graph attached.

2. As you can see in the graph, the points are:

$A(-2,-2)\\B(-2,3)\\C(2,4)\\D(3,1)\\E(0,-2)$

And the lenghts <em>AB</em> and <em>EA</em> are:

$AB=5$

$EA=2$

3. To find the other lenghts, you can apply the formula for calculate the distance between two points:

$distance=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$

4. Thefore, you have:

$BC=\sqrt{(2-(-2))^{2}+(4-3)^{2}}=4.12\\CD=\sqrt{(2-3)^{2}+(4-1)^{2}}=3.16\\DE=\sqrt{(3-0)^{2}+(1-(-2))^{2}}=4.24$

5. The perimeter is:

$P=AB+CD+DE+EA\\P=5+4.12+3.16+4.24+2\\P=17.52$

7 0

3 years ago