Math Test 20 40 7
Science Test 15 35 5
Which percentage of students took the math test and received a grade of 90 or above?
16.39%
29.85%
57.14%
28.69%
Let event A = "math test" and event B = "Score: 90-100." Then find , where
To find the percentage of students who took the math test and received a grade of 90 or above, we need to calculate the conditional probability P(A ∩ B), which is the probability of event A ("math test") and event B ("Score: 90-100") happening simultaneously.
From the two-way frequency table:
The number of students who took the math test and received a grade of 90 or above is 20.
The total number of students who took the math test is 20 + 40 + 7 = 67.
Now, we can calculate the conditional probability:
P(A ∩ B) = (Number of students who took the math test and received a grade of 90 or above) / (Total number of students who took the math test) × 100%
P(A ∩ B) = 20 / 67 × 100% ≈ 29.85%
So, the percentage of students who took the math test and received a grade of 90 or above is approximately 29.85%.
There are 1.3 miles in 2,200 yards.
It is the conversion of one unit to another unit with its standard conversion.
Examples:
1 hour = 60 minutes
1 minute = 60 seconds
1 km = 1000 m
We have,
2,200 yards ____(1)
1 mile = 1760 yards _____(2)
Now,
From (1) and (2),
1 mile = 1760 yards
Multiply 2,200/1760 on both sides.
2,200/1760 x 1 mile = 2,200/1760 x 1760 yards
1.25 miles = 2,200 yards
Rounding to the nearest tenths.
1.3 miles = 2,200 yards
Thus,
There are 1.3 miles in 2,200 yards.
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Answer:
1.25 mi
Step-by-step explanation:
First, we want to convert a yard into feet; recall 1 yard = 3 feet.
Then we want to divide that by the number of feet in a mile 1 mile = 5280feet.
So 2200*3 =6600, then divide by 5280
6600/5280 = 1.25 mi
2200 yard is 1.25 miles
Answer:
-40
Step-by-step explanation:
5*(-8)*1-(-8*0)
-40+0
-40
Answer:
the answer is 25
Step-by-step explanation:
cause -5 times -5 is 25 cause negative times negative is positive, and 5 times 5 is 25.
Answer:
It is miles far from Chester to Durbin.
Step-by-step explanation:
Given:
Its 10 3/5 miles from Alston to Barton and 12 1/2 miles from Barton to Chester. The distance from Alston to Durbin, via barton and Chester, is 35 miles.
Now, to find the distance from Chester to durbin.
Distance from Alston to Barton =
Distance from Barton to Chester =
As, given the distance from Alston to Durbin, via barton and Chester, is 35 miles.
Thus, the total distance = 35 miles.
So, we add the distance of Alston to Barton and Barton to Chester and get the distance from Alston to Chester:
Distance from Alston to Chester
Now, to get the distance from Chester to durbin we subtract distance from Alston to Chester from the total distance:
Therefore, it is miles far from Chester to Durbin.
x/a=b