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3 years ago

Which expression is equal to 24 - 18 ÷ 3 A) 24 -6 B) 6 ÷ 3 C) 8 - 18 D) 6 - 3

Mathematics

2 answers:

4vir4ik [10]3 years ago

8 0

Answer:

A) 24 - 6

Step-by-step explanation:

You would divide 18 by 3 firstly, and then subtract that from 24.

24 - 18 ÷ 3

24 - 6

= 18

Westkost [7]3 years ago

7 0

Answer:

Correct Answer is option A.

Step-by-step explanation:

24 - 18 ÷ 3

According to PEMDAS Rule where P stands for parenthesis ,E exponents,M multiplication ,D division , A addtion and S subtraction

so first we divide 18 by 3 we get

24-6

Answer.

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When traveling with the wind, it takes an airplane 3 hours to travel 1800 miles. It takes the same airplane 3.6 hours to travel

Alla [95]

Answer:

2000

Step-by-step explanation:

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3 years ago

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3 years ago

the combined age of april and laura is 23 years. laura's age is two years more than half of april's age. what is laura's age

Kipish [7]

Laura's age is 9 years.

Solution:

Let x be the age of April.

Laura's age = 2 years more than half of April's age

<u>Convert statement into algebraic expression:</u>

Half of April's age = $\frac{x}{2}$

2 years more than half of April's age = $\frac{x}{2}+2$

Combined age of April and Laura = 23

⇒ April's age + Laura's age = 23

$$\Rightarrow \ \ x+(\frac{x}{2}+2) =23$

$$\Rightarrow \ \ x+\frac{x}{2}+2 =23$

$$\Rightarrow \ \ \frac{x}{1}+\frac{x}{2}+\frac{2}{1} =23$

To add the fractions make the denominators same.

Multiplying 2 on both numerator and denominator of unlike terms, we get

$$\Rightarrow \ \ \frac{x\times2}{1\times2}+\frac{x}{2}+\frac{2\times2}{1\times2} =23$

$$\Rightarrow \ \ \frac{2x}{2}+\frac{x}{2}+\frac{4}{2} =23$

Denominators are same, now add the fractions.

$$\Rightarrow \ \ \frac{2x+x+4}{2} =23$

Do cross multiplication.

$$\Rightarrow \ \ 2x+x+4=23\times2$

$$\Rightarrow \ \ 3x=46-4$

$$\Rightarrow \ \ 3x=42$

$$\Rightarrow \ \ x=14$

Aprils's age = 14 years

Laura's age = $\frac{14}{2}+2$

= 7 + 2

Laura's age = 9

Hence Laura's age is 9 years.

8 0

4 years ago

The radius of a circle is 15 inches. A chord is drawn 4 inches from the center of the circle. How long is the chord?

Alex73 [517]

Let X represent the length of the chord.

By using Pythagoras' Theorem:

4^2 + (X/2)^2 = 15^2

(X^2)/4 = 209

X^2 = 836

X = 28.91

6 0

4 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!

olga55 [171]

I believe the answer is 45.

6 0

3 years ago

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