Answer:
3/4
Step-by-step explanation:
4×+3y=12
answer: m = 3/4
Answer: Choice C
Mean = 37.1
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Explanation:
Refer to the table below. The colum labeled "M" is the midpoint for each age interval. To find the midpoint, add up the endpoints and divide by 2. For example, the midpoint of 18 and 24 is (18+24)/2 = 42/2 = 21. Notice how the values of M are increasing by 7 each time.
The column labeled fM refers to multiplying the frequency f with the midpoint M. Example: fM = 6*21 = 126 in the first row.
Add up everything in the column labeled fM and you should get 1484. Divide this over the sum of the frequencies (40) and the mean is 1484/40 = 37.1
B. 2 1/5
Divide the 11 cakes by the 5 people.
11/5 =2.2
To convert 2.2 to a fraction:
Put 2.2 over one:
2.2/1
Then multiply both the numerator and denominator by the number of places after the decimal. Since we move by one place, we multiply both by 10.
2.2*10/1*10 = 22/10
Reduce the fraction.
22/10=11/5
Now divide the 11 by the five. 5 can fit into 11 two times, with 1/5 left over.
Answer:
x = (-36)/5
Step-by-step explanation:
Solve for x:
(-10 x - 6)/2 = 33
Multiply both sides of (-10 x - 6)/2 = 33 by 2:
(2 (-10 x - 6))/2 = 2×33
(2 (-10 x - 6))/2 = 2/2×(-10 x - 6) = -10 x - 6:
-10 x - 6 = 2×33
2×33 = 66:
-10 x - 6 = 66
Add 6 to both sides:
(6 - 6) - 10 x = 6 + 66
6 - 6 = 0:
-10 x = 66 + 6
66 + 6 = 72:
-10 x = 72
Divide both sides of -10 x = 72 by -10:
(-10 x)/(-10) = 72/(-10)
(-10)/(-10) = 1:
x = 72/(-10)
The gcd of 72 and -10 is 2, so 72/(-10) = (2×36)/(2 (-5)) = 2/2×36/(-5) = 36/(-5):
x = 36/(-5)
Multiply numerator and denominator of 36/(-5) by -1:
Answer: (-36)/5
It would be $2.09 if you are dividing