In order to get an average of 90, the student needs to get a score of 96.
The average can be found by summing up all the numbers in a data set and then dividing it by the number of characters in that dataset.
Assuming the average is 90, and that the score the student needs to get is x, the formula would be:
<em>Average = Sum of scores / Number of scores </em>
90 = (83 + 89 + 92 + x) / 4
90 x 4 = 264 + x
x = 360 - 264
x = 96
The student needs to get a score of 96 on the last exam.
<em>Find out more at brainly.com/question/13406591.</em>
Answer:
The height of the parallelogram is 20m
Step-by-step explanation:
Given the area of a parallelogram
A = bh where;
b is the base and h is the height
If the base and height of a parallelogram are in the ratio of 6:5. It's area is 480 inches, this means that b/h = 6/5
5b = 6h
b = 6h/5
Substituting equation 1 into the volume if the parallelogram we have;
A = 6h/5×h
480 = 6h²/5
6h² = 480×5
6h² = 2400
h² = 2400/6
h² = 400
h = √400
h = 20m
Answer:
2560xy^7
Step-by-step explanation:
256x10y^7=16²x10y^7 = 2560xy^7
