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Anit [1.1K]
2 years ago
10

Eric is twice as old as Shawn. The sum of their ages is 33. How old is Shawn?

Mathematics
1 answer:
vaieri [72.5K]2 years ago
4 0

Answer:

Shawn is 11 years old, Eric is 22 years old

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An integer between 4.5 and 5.5
Brums [2.3K]

Answer: 5

Step-by-step explanation:

the only whole number between them is 5 <3

3 0
3 years ago
a geometric series where the first term is -12, the last term is -972, and each term after the first is triple the previous term
Luba_88 [7]

Answer:

the geometric series is a(n) = -12(3)^(n-1)

Step-by-step explanation:

"Triple" denotes multiplication by 3.  Thus, the common factor here is 3.

The general formula for a geometric series is a(n) = a(1)(r)^(n-1), where a(1) is the first term, r is the common ratio.

Here, we have a(n)= (-12)(3)^(n-1) = -972.

We need to solve this for n, which represents the last term.

The first step towards solving for n is to divide both sides by -12:

3^(n-1) = 81

To solve for n-1, rewrite 81 as 3^4.  Then we have:

3^(n-1) = 3^4, implying that (n-1) = 4 and that n = 5.

Then we know that it is the 5th term that equals -972.

In summary, the geometric series is a(n) = -12(3)^(n-1).

8 0
3 years ago
Find the midpoint of the line segment.
Alik [6]

Answer:

(1, 3)

Step-by-step explanation:

The first endpoint (the one on the left) is (-3, 2). The second endpoint (the one on the right) is (5, 4). To find the midpoint, find the middle of both x and y. To do that, add the values of x and y respectively and divide by 2:

for x-value of midpoint:

(x-value of first endpoint + x-value of second endpoint) / 2

= (-3 + 5) / 2

= 2 / 2

= 1

for y-value of midpoint

(y-value of first endpoint + y-value of second endpoint) / 2

= (2 + 4) / 2

= 6 / 2

= 3

8 0
3 years ago
Multiply. 4 × 16.7....
DaniilM [7]

Answer:

66.8

Step-by-step explanation:

Try only multiplying 16 and 4, then 0.7 and 4, then add them all up.

4 0
3 years ago
2x + 6y = -6
loris [4]

Answer:

(-3, 0)

Step-by-step explanation:

Solve by elimination. Multiply the first equation by -2 and then add the two equations together.

6 0
3 years ago
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