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3 years ago

What's an expression that can be used to multiply 6 x 198 mentally

2 answers:

6 0

So first you do 6×2 since 198 is 2 less than 200

And if you do the math, it would be 12

After that, you do 6×200, since if you round off 198, it would be 209

And if you do the math again, it would be 1200

After that if you subtract 12 from 1200, you would get 1188

So the answer is 1188

( Even if you calculate 6×198the way it is, you would get 1188)

Hope this helps:)

disa [49]3 years ago

3 0

Sense it is metal math you do 6 x 200
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The Gates family has a home that they purchased for $160,000. If the value of their home increases at a rate of 3% per year, how

Westkost [7]

The answer will be the first one, $208,000

1) find the total percentage - 3x10=30%

30% of 160,000 = 48,000

160,000 + 48,000 = $208,000

8 0

2 years ago

1/3nr^2h;r=6,h=4 <br> Can someone help me

zhannawk [14.2K]

It’s 150.2

Correct me if I’m wrong

6 0

3 years ago

Which of these is NOT an integer

Tema [17]

Hi there!

»»————-　★　————-««

I believe your answer is:

Option A

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$\boxed{\text{Option A:}}\\\\3^{-5}\\\\\rightarrow \frac{1}{3^5}\\\\\rightarrow \frac{1}{243}\\\\\ \text{This is \textbf{NOT} an integer.}}$

⸻⸻⸻⸻

$\boxed{\text{Option B:}}\\\\-3^5\\\\\rightarrow -3 * -3 * -3 * -3 * -3 \\\\\rightarrow \boxed{-243}\\\\\\\text{This \textbf{IS} an integer.}$

⸻⸻⸻⸻

$\boxed{\text{Option C:}}\\\\\frac{1}{3}^{-5} \\\\\rightarrow \frac{1}{(\frac{1}{3})^5}\\\\\rightarrow \frac{1}{\frac{1}{243} }\\\\\rightarrow \boxed{243}\\\\\\\text{This \textbf{IS} an integer.}$

⸻⸻⸻⸻

$\text{Option \textbf{A} does not simplify into an integer.}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

7 0

2 years ago

You and your best friend are meeting at

chubhunter [2.5K]

Answer:

10.6 miles

Step-by-step explanation:

The corner where Starbucks is located could be considered to be the right angle in a right triangle having legs of 8 miles (distance to you) and 7 miles (distance to your friend). The straight-line distance (d) from you to your friend is the hypotenuse of that triangle. Its length can be found from the Pythagorean theorem.

d² = 8² +7²

d² = 64 +49 = 113

d = √113 ≈ 10.6

You and your friend are about 10.6 miles from each other.

4 0

2 years ago

Explain how to subtract 247 from 538?

alexandr402 [8]

1. 538 - 247 = ?

2. 8 - 7 = 1

3. You can't subtract 3 and 4, so you have to take number from 5 (turning it into a 4) and then you add a 1 right next to 3 (which makes it 13;13 - 4 = 9

4. 4 - 2 = 2

538 - 247 = 291

So the answer is 291.

7 0

3 years ago