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AVprozaik [17]
2 years ago
7

Last semester, Zachary earned an average score of 80 points on math tests. So far this semester, his average score is 15% lower.

What is the average of Zachary's scores this semester?
Mathematics
2 answers:
Ghella [55]2 years ago
7 0

Answer:

The answer would be 12

Step-by-step explanation:

15/100 =  X/80

To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 80, and then finally divide the numerator by the denominator on the right side to get the answer.

The equation

15/100 = X/80

X/80 = 15/100

X*80/80 = 15*80/100

X = 1200/100

X = 12

Ostrovityanka [42]2 years ago
4 0
Look here no one help if people do too much time waste till help received just use app names guthmath helps with math and use this code P9EJ5H to get answere because believe me u will wait alot the app is free
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The base diameter and the height of a cone are both equal to x units.
SSSSS [86.1K]

Answer:

π x³ /12 cubic units.

hope this helps you and have a nice day

4 0
2 years ago
Here are yesterday's high temperatures (in Fahrenheit) in 12 U.S. cities. 48, 50, 54, 56, 63, 63, 64, 68, 74, 74, 79, 80 Notice
irinina [24]

For the given data set

Minimum = 48

Lower quartile = 55

Median = 63.5

Upper quartile = 74

Maximum = 80

Interquartile range = 19

<h3>Measures of a Data </h3>

From the question, we are to determine the minimum, lower quartile, median, upper quartile, maximum, and interquartile range of the given data set

The given data set is

48, 50, 54, 56, 63, 63, 64, 68, 74, 74, 79, 80

Minimum = 48

Lower quartile = (54+56)/2

Lower quartile = 110/2

Lower quartile = 55

Median = (63+64)/2

Median = 127/2

Median = 63.5

Upper quartile = (74+74)/2

Upper quartile = 148/2

Upper quartile = 74

Maximum = 80

Interquartile range = Upper quartile - Lower quartile

Interquartile range = 74 - 55

Interquartile range = 19

Hence, for the given data set

Minimum = 48

Lower quartile = 55

Median = 63.5

Upper quartile = 74

Maximum = 80

Interquartile range = 19

Learn more on Measures of a Data here: brainly.com/question/15097997

#SPJ1

5 0
1 year ago
-1/5, 5/6,1.3,1 1/3, 5/3 -4/3 least to greatest
Sergeeva-Olga [200]
I DK I DK I DK I DK but maybe it’s already in that order
3 0
2 years ago
Read 2 more answers
PLZ HELP WILL GIVE 30 POINTS AND MARK BRAINLIEST IF ANSWER ARE CORRECT. Thank you! :)
sveticcg [70]

Answer:

3) 2, 3, 4, 5

4) $10

5) B

3 0
3 years ago
Find the square root of these numbers to the nearest tenth. 72 = 32 = 481 =
larisa86 [58]
Squrt of 72 is  8.49

squrt of 32 is  5.66

squrt of 481 is 21.93
4 0
3 years ago
Read 2 more answers
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