Rational Numbers
Is pi a rational number or irrational number AND WHY?
Irrational because it is a decimal that doesn't end or repeat.
What is
-7.3^5 *(-7.3^4)
-7.3^9
What is the following number in standard form?
7.823 x 10^5
782,300
Write a two step equation to represent the situation:
An emergency plumber charges $65 as a call-out fee plus an additional $75 per hour. If the total repair bill is $196.25, how many hours, h, was he there?
75h + 65 = 196.25
Rational it is a terminating decimal (decimal that ends)
What is
j^8/(j^2)
j^6
(9.43 * 10^5) *(6.1 * 10^3)
5.7523 * 10^16
Write an equation to represent this situation (don't solve):
On a road trip, a family drives 175 miles the first day and 325 miles per day each remaining days. How many additional days, d, will they travel to reach a distance of 2,400?
325d + 175 = 2,400
Is sqrt(144) a rational number AND WHY?
Yes, because it is a perfect square.
What is
[(2/5)^9]^6
(2/5)^9
(3.84 * 10^15)/(1.2 * 10^3)
3.2 * 10^12
Create a two step equation to represent the situation below:
Lillian needs $75 for a Taylor Swift ticket. She already has $12 and she can earn the rest by doing 15 hours of yardwork. Let h represent yardwork.
15h + 12 = 75
Select ALL rational numbers:
pi, 0.76overline53, 4 1/5, 12.3202..., 2.222...
0.76overline53, 4 1/5, 2.3232...
What is
(x^5y^-4e^8) /(x^2y^-5e^-3)
x^3ye^11
About how many times bigger is
1.2 *10^6 than
3.6 * 10^2
3.3 * 10^3
Write an equation to represent the situation:
Wendy bought 9 croissants at a French bakery near her house. The bakery gave her a $6 discount off her total for buying so many. In total, she paid $30. What is the regular price of a croissant?
9c - 5 = 30
How do you describe irrational numbers? (Hint: there are TWO answers, one describes decimals, the other has to do with squaring)
-Decimals that do not repeat or terminate
-Imperfect Squares
Write an equation to represent the situation:
Today, Bill harvested 1/4 of the carrots growing in his garden and took them home to make a big pot of carrot soup. He used them all, plus 3 more carrots that were in his fridge for a total of 15 carrots. How many carrots were growing in Bill’s garden at the start of the day?
1/4c = 15