Answer:
There are 2/3 of 1/5 cups in 2/15 cups of cookie dough.
Step-by-step explanation:
1/5=3/15
Divide 2/15 by 3/15 using keep, change, flip rules
2/15x15/3=30/45=6/9=2/3
Answer:
20%
Step-by-step explanation:
Divide tip by bill.
16 / 80 = 0.2
Convert decimal to percent.
0.2 becomes 20%
Only (2 m)(3 m) = 6 m^2 and (2 m)(4 m) = 8 m^2 could be correct. Make your choice based upon these results.
<h3>
Answer: Choice A) 0.20</h3>
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Explanation:
Let's say there are 1000 students. The students must take math, science or they can take both simultaneously.
- 65% of them are in math. So there are 0.65*1000 = 650 math students.
- 43% are in science, leading to 0.43*1000 = 430 science students.
- 13% are in both so we have 0.13*1000 = 130 students who are in both.
Now onto the sentence that says "Suppose a high school student who is enrolled in a math class is selected at random"
This means we only focus on the 650 math students and ignore the 1000-650 = 350 students who aren't in math.
Of those 650 math students, 130 are also in science (since 130 are in both classes).
The probability we're after is therefore 130/650 = 0.20
