Percentage Calculations and Absolute Values

This video tutorial covers the concept of absolute value, using examples like plotting numbers on a number line and calculating temperature differences. It also explores ordering numbers by their absolute value, calculating donation percentages from earnings, comparing exponential values, and determining travel distances as percentages of a total journey.

What is the absolute value of -1.5?

• -1.5

• 0

• 1.5

• 3

Which temperature is 6 degrees away from zero?

• 12°C

• 0°C

• -6°C

• -12°C

Arrange the following in order from least to greatest: |−2.7|, 0, 1.3, |−1|.

• 0, |−1|, 1.3, |−2.7|

• |−1|, 0, 1.3, |−2.7|

• 1.3, 0, |−1|, |−2.7|

• |−2.7|, |−1|, 0, 1.3

What percentage of her income does Elena donate to charity?

• 15%

• 20%

• 12%

• 10%

In the equation relating Elena's earnings and donations, which is the dependent variable?

• Neither

• Earnings (m)

• Donations (d)

• Both m and d

How many times larger is 3^4 compared to 3^3?

• 9 times

• 12 times

• 4 times

• 3 times

If Lynn's family has traveled 26 miles, what percentage of their trip have they completed?

• 5%

• 8%

• 10%

• 12%

How far have Lynn's family traveled when they have completed 72% of their trip?

• 234 miles

• 250 miles

• 300 miles

• 200 miles

What percentage of the trip have they completed if they traveled 377 miles?

• 120%

• 110%

• 100%

• 116%

How many times larger is 5^10 compared to 5^4?

• 78125 times

• 15625 times

• 3125 times

• 625 times