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saw5 [17]
3 years ago
11

There are x giraffes at the zoo. The number of elephants is 4 less than three times the number of giraffes, and there are more t

han 23 elephants.
Mathematics
1 answer:
Zinaida [17]3 years ago
3 0
Let X = number of Giraffes
Number of elephants = 3X - 4
Because it was stated that there are more than 23 elephants, the number should not fall below 23.

The algebraic expression would be:

3X - 4 = 23

To get X; Transfer -4 to the other side, changing its sign to positive.

3X = 23 + 4
3X = 27

To get X; Divide both sides by 3
X = 27 / 3
X = 9

Since X represents the number of giraffes, then, there are 9 giraffes in the zoo.

To Check: Substitute X with 9 in the algebraic expression.

3X - 4 = 23
3(9) - 4 = 23
27 - 4 = 23
23 = 23 EQUAL


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Ostrovityanka [42]
Subtract the portion used from the whole.

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Hope this helps! :)
5 0
3 years ago
Find the midpoint of the line segment JK if j (4,6) and k(0,-4)
Snowcat [4.5K]

Answer:

(2,1)

General Formulas and Concepts:

Order of Operations: BPEMDAS

Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define points</u>

J (4, 6)

K (0, -4)

<u>Step 2: Find midpoint</u>

  1. Substitute:                         (\frac{4+0}{2},\frac{6-4}{2})
  2. Add/Subtract:                    (\frac{4}{2},\frac{2}{2})
  3. Divide:                               (2,1)
4 0
3 years ago
Please help. Give answer and why its the answer. <br>I will give brainliest!
777dan777 [17]
(a) False. The number 7 is NOT an element of set B as 7 is not in the set B (2, 3, 4 and 0 are though)

(b) False. 3 is a member of set A. It is the third element listed in the set. So saying "3 is not a member of set A" is a false claim

(c) True. The value 0 is found in set B. It is the last element listed. 

Final Answer: Choice C) 
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3 years ago
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