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statuscvo [17]
2 years ago
12

The sum of three consecutive integers is -54. What are the integers?

Mathematics
1 answer:
tresset_1 [31]2 years ago
5 0

Answer:

-19, -18, -17

Step-by-step explanation:

1. To find the sum of three consecutive integers, we can use the formula x + x + 1 + x + 2, where x = first term. As you can see from the formula, + 1 is the next term, and + 2 is the following term after that.

2. (Solving)

Step 1: Combine like terms.

  • (x + x + x) + (1+2) = -54
  • 3x + 3 = -54

Step 2: Subtract 3 from both sides.

  • 3x + 3 - 3 = -54 - 3
  • 3x = -57

Step 3: Divide both sides by 3.

  • \frac{3x}{3} = \frac{-57}{3}
  • x = -19

3. Now that we know our first term is -19, let's apply it to x + x + 1 + x + 2.

  • (-19) + (-19+1) + (-19+2)
  • -19 + (-18) + (-17)

4. Okay, so we got that the integers are -19, -18, and -17. Let's check if these numbers sum to -54.

  • -19 - 18 - 17
  • -37 -17
  • -54

Therefore, the integers are -19, -18, and -17.

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If f(x)=5x+a and f-1(10)=-1, find a
zhenek [66]

Answer:

15

Step-by-step explanation:

Given the function

f(x)=5x+a

and f^{-1} (10)=-1(f^{-1} \text{is the inverse function of f})

let f(x)=y

Substitute in f(x)

y=5x+a\\y-a=5x\\x=\frac{y-a}{5}

From the definition inverse function

if f(x)=y    ⇒   f^{-1} (y)=x

Substitute this in the above expression

f^{-1} (y)=\frac{y-a}{5}

Substitute y=10

⇒

f^{-1} (10)=\frac{10-a}{5}\\-1=\frac{10-a}{5}\\-5=10-a\\a=10+5\\a=15

Therefore a=15

4 0
3 years ago
As you move the pointer over font names in the font list, the text on the slide displays a ____ of the different font choices.
mojhsa [17]

Answer:

Live preview

Step-by-step explanation:

Live preview

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7 0
3 years ago
20 POINT QUESTION. EXPLAIN HOW YOU GOT THE ANSWER. I WILL MARK AS BRAINLIEST THANK YOU.
Akimi4 [234]
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5 0
2 years ago
On a coordinate plane, a curved line with a minimum value of (0, negative 9) and maximum values of (negative 2.3, 16) and (2.3,
nikitadnepr [17]

Answer:

(0, -9)

Step-by-step explanation:

On a coordinate plane, a curved line with a minimum value of (0, negative 9) and maximum values of (negative 2.3, 16) and (2.3, 16), crosses the x-axis at (negative 3, 0), (negative 1, 0), (1, 0), and (3, 0), and crosses the y-axis at (0, negative 9). Which is a y-intercept of the graphed function? (–9, 0) (–3, 0) (0, –9) (0, –3)

The y-intercept is the point where x = 0, and It says there that the graph crosses the y-axis at (0, -9)

5 0
3 years ago
Read 2 more answers
What is 25% of 400 5% of 20
stiks02 [169]

Hello there!


What is 25% of 400?

\frac{25*400}{100}

= \frac{10,000}{100}

= 100

Thus,

25% of 400 is 100


What is 5% of 20?

Well, we just need to follow the previous steps.

\frac{5*20}{100}

= \frac{100}{100} = 1

Thus,

5% of 20 is 1


I hope this answer helps. Let me know if you have additional questions about the answer. As always, it is my pleasure helping student like you.


5 0
3 years ago
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