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Sveta_85 [38]
3 years ago
12

Hello ya'll. I have a quick question to ask ya'll.

Mathematics
1 answer:
stepladder [879]3 years ago
8 0

Answer:

3n

Step-by-step explanation:

If the initial number is n, one less than n is n - 1, and one more than n is n + 1. so we have:

n - 1 + n + n + 1=3n

At first I thought this answer was too easy, so I tried for n is 6.

3*6=18\\5+6+7=18

This is really cool! Hope this helps!

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The table shows different possibilities for the number of students to the number of fans present at a football game. Which ratio
Deffense [45]

Answer: 7:49

Step-by-step explanation: As you can see in the table, if you divide the number of fans present at a football game by the number of students, you would always get 7. So, 7:49 is a choice because if you divide 49 by 7, you get 7. Hope this helps!!

7 0
3 years ago
Find the circumference of the object. Use $3.14$ or $\frac{22}{7}$
TiliK225 [7]
C≈6.28m your welcome
4 0
2 years ago
The value of a certain car decreases by 16% each year. What is the 1⁄2-life of the car?
svet-max [94.6K]

Answer:

The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

V(t) = V(0)(1-r)^{t}

In which V(0) is the initial value and r is the constant decay rate, as a decimal.

The value of a certain car decreases by 16% each year.

This means that r = 0.16

So

V(t) = V(0)(1-r)^{t}

V(t) = V(0)(1-0.16)^{t}

V(t) = V(0)(0.84)^{t}

What is the 1⁄2-life of the car?

This is t for which V(t) = 0.5V(0). So

V(t) = V(0)(0.84)^{t}

0.5V(0) = V(0)(0.84)^{t}

(0.84)^{t} = 0.5

\log{(0.84)^{t}} = \log{0.5}

t\log{0.84} = \log{0.5}

t = \frac{\log{0.5}}{\log{0.84}}

t = 3.98

The half life of the car is 3.98 years.

7 0
3 years ago
Jake bought 3 drawing pens for $8.07. Each pen costs the same amount. About how much did he spend for one pen? * 2 points
Marina86 [1]

Given:

Jake bought 3 drawing pens for $8.07.

Each pen costs the same amount.

To find:

How much did he spend for one pen?

Solution:

Let x be the cost of each pen. Then

Cost of three pens = 3x

Jake bought 3 drawing pens for $8.07.

3x=8.07

Divide both sides by 3.

x=\dfrac{8.07}{3}

x=2.69

Therefore, he spend $2.69 for one pen.

3 0
3 years ago
Sam and John live on the same street. John is 1 year older then twice Sam’s age. When you sum their ages you get37.How old are e
Lana71 [14]

Answer:

15

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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