+ is positive, or plus
- is negative, or minus
the third one is multiply, can look like * and "x"
the fourth one is divide, can look like "/"

hope this helps

8 0

3 years ago

Read 2 more answers

Lashonda purchased a prepaid phone card for $20. Long distance calls cost 8 cents a minute using this card. Lashonda used her ca

Gre4nikov [31]

We know that

• Lashonda purchased a prepaid phone card for $20.

• Long-distance calls cost 8 cents a minute.

• The remaining credit on her card is $17.12.

This problem can be expressed as

$20-0.08x=17.12$

Where <em>x</em> is the number of minutes.

We solve the equation for <em>x</em>

$\begin{gathered} -0.08x=17.12-20 \\ -0.08x=-2.88 \end{gathered}$

Then, we divide by -0.08 the equation

$\begin{gathered} \frac{-0.08x}{-0.08}=\frac{-2.88}{-0.08} \\ x=36 \end{gathered}$ <h2>Therefore, Lashonda's call last 36 minutes.</h2>

8 0

1 year ago

Tyler walked 6 miles in 3 hours. What was his walking rate in miles per hour

BARSIC [14]

Answer:

This comes out to 2 mph.

Step-by-step explanation:

Reduce the following fraction:

6 miles

---------------

3 hours

This comes out to 2 mph.

8 0

3 years ago