Answer:
The ratio of the number of mangoes in the $3 stack to those in the $6 stack is 1 : 2
Step-by-step explanation:
Let the number of mangoes bought by the grocery store be n. Also let the number of mango sold for $3 in one stack be x and the number of mango sold for $6 in the second stack be y.
Therefore:
x + y = z (1)
Also, the mangoes was sold at break even price, that is the cost of the mango and the price it was sold for was the same. Therefore:
Cost of buying = Price it was sold for
The cost of the mango = 5z and the price it was sold for = 3x + 6y
3x + 6y = 5z (2)
Substituting z = x + y in equation 1
3x + 6y = 5(x + y)
3x + 6y = 5x + 5y
6y - 5y = 5x - 3x
y = 2x
x / y = 1/ 2 = 1 : 2
The ratio of the number of mangoes in the $3 stack to those in the $6 stack is 1 : 2
Answer:
a=6
Step-by-step explanation:
If you input 3(a+2)=4a
Percentage of students with GPA between 1.5 and 3.5 is 75% and Percentage of students that don't belong to freshmen is 73.9%.
<h3>How to Calculate the Percentage?</h3>
1) Total number of households with computer = 111,804
Percentage of Cincinnati households with computer = 82.1%
Thus;
Number of Cincinnati households with computer = 82.1% * 111804 ≈ 91791
2) Total number of students = 854
Percentage of students with GPA between 1.5 and 3.5 = 100 - (11 + 14) = 75%
3) Total number of students = 854
Number of freshmen = 223
Thus;
Percentage of students that don't belong to freshmen = 1 - (223/854) = 1 - 0.2611 = 0.7389 ≈ 73.9%
4) We are given;
17% of the 198 seniors are on Academic Watch
10% of 223 freshmen are on Academic watch
Thus;
a) seniors on academic watch = 17% * 198 ≈ 34
b) freshmen on academic watch = 10% * 223 ≈ 22
c) Number of more seniors that freshmen on academic watch = 34 - 22 = 12
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Answer:
Step-by-step explanation:instead, try making the subscripts and superscripts stand out:
n-1
a = a * r
n n-1
Believe me, it's worth the extra work to do this!!
Given the sequence -3, -6, -12, -24, you can easily see that the first term,
a is -3. The common factor is 2. Note how (-3)*2=-6, and so on.
1
So, a = -3 and r=2.
1
So the formula for this geometric sequence is
n-1
a = -3*2
n
