Adding/Subtracting Fractions + Equivalent Fractions
What is the common denominator for two fractions that have denominators of 2 and 4?
4
Convert 3/10 to a decimal AND percent
0.3 OR 0.30 and 30%
A class has 20 students. 25% of them brought lunch from home. How many students brought lunch?
5
A rollercoaster at the top of a hill has mostly what type of energy?
potential or gravitational potential energy
What color is the water bottle Molly drinks out of every single day?
Yellow**** or Lime Green
2/3 + 1/2 = ??
7/6 or 1 1/6
Convert 0.45 to a fraction AND percent
45/100 and 45%
A video game costs $40. It is 30% off. How much is the discount?
$12
How can you figure out how much energy a device uses in 24 hours?
If you know how much it uses in 1 hour, you can multiply that by 24.
What is the color of Molly's phone case?
Why do you need to find a common denominator when adding or subtracting fractions and mixed numbers?
You need a common denominator so that the pieces of the fractions are the same size.
Convert 65% to a decimal AND a fraction in it's simplest terms
0.65 and 13/20
There are 24 plants in a greenhouse. 6 of them are tomato plants. What percent of the plants are tomatoes?
25%
In class we did a packet about energy efficiency. Which energy source was the most efficient AND what was it's efficiency percentage?
Hydropower, 87.5%
What color are Molly's eyes?
Blue
Solve 3/5 - 1/4
7/20
What is 7/8 as a decimal and a percentage?
0.875 and 87.5%
A school raised $225 for a fundraiser. 60% of the money raised is going towards math supplies. How much is going to other subjects?
$90
When you know the energy efficiency of a turbine and how much energy it generates in total, how can you figure out how much is wasted?
You can find the amount that is useful by using the percentage or fraction that is efficient and then subtract the useful energy from the total.
You can find the leftover percentage or fraction that is not efficient and then use that with the total to find out how much is wasted.
What would you say is a phrase that Molly uses a lot in class?
"Tragic", "You should not be talking right now", "Show all your work or I'm not looking at it", "Lock in", "MYOB", etc. **If you say something not on this list, Molly will decide if it's a good answer. It must be something said A LOT in class***
Find the answer to 4 1/4 - 2 4/6
1 7/12
The number is 0.375. What is this number as a fraction and a percent?
375/1000 and 37.5%
An device is 4/6 efficient. If it generates a total of 324 kWh of energy. How much is useful energy and how much is wasted?
67%: useful: 217.08 or 217 kWh, wasted: 106.92 or 107 kWh
66%: usefule: 213.84 or 214 kWh, wasted: 110.16 or 110 kWh
When deciding on an energy source to power a city, what are 3 things should you think about?
Any combination of: accessibility, location of resources, efficiency, renewable, readily available, cost
What activity did Molly participate in in high school?