0
Stacey's average score on three maths tests is 84 Her last two test scores were 79 and 93 What was her first test score?
Wiki User
∙ 14y ago
Average of three test scores is 84 can be written (x+y+z)/3=84. If you know two of the scores then (79+93+z)/3=84, so to solve for z, 79+93+z=84*3 z=252-79-93 z=80 The first test score was 80
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What should the independent variable be?
The answer depends on what the experiment is about. For example, if you believe (or want to test) that pupils' scores in English tests depend on their scores in maths tests, then the independent variable is the maths score. But if you believe that the English scores influence their maths scores then the independent variable is the maths score.
If a group of pupils found that if one of them scores 9 marks more in their maths test her average score is 81 but if one of them scores 3 marks less the average score is 78 how many pupils are there?
group
What is the average total of 8 and 18?
the average of 8 and 18 is 26 in maths
What does the mean indicate in maths?
The mean is the average obtained by the sum of many there are divided by how many there are.
What is the average level for a year 7 maths levelAsk us anything?
It depends what school you go to.In my school, where we specialise in maths, the average level would be about a 6c. But in a grammer school it could be higher. If you mean the national curriculum levels then the average is about 4a-5c. Hope this helped :)
What should the independent variable be?
The answer depends on what the experiment is about. For example, if you believe (or want to test) that pupils' scores in English tests depend on their scores in maths tests, then the independent variable is the maths score. But if you believe that the English scores influence their maths scores then the independent variable is the maths score.
If a group of pupils found that if one of them scores 9 marks more in their maths test her average score is 81 but if one of them scores 3 marks less the average score is 78 how many pupils are there?
group
Which was the first book of maths?
THE DICTIONARY WAS THE FIRST BOOK OF MATHS!!!
What is professor fiendish first name in murderous maths?
Professor Fiendish's first name in the "Murderous Maths" series is Norman.
In maths what if there is two medians?
Average the two.
How do you hack world maths day?
Hacking is not what World Maths Day is about. WMD is about people from around the world competing with each other. If you want to get high scores, you need to answer the questions correctly and honestly.
Is maths is difficultfor average student in 11th?
11th grade? That would depend on your meaning of "average". An "average" student that meets the standard of a C as a grade would think that maths is difficult, but the "average" student in the USA could expect a B or B-, and would think that maths is an "ok" subject.
Does using coloured paper increase scores on a maths test?
Yes, if you wrap some money in the paper before you hand it in.
In maths what does mean mean m-3?
the average, so the average - 3
What is the average total of 8 and 18?
the average of 8 and 18 is 26 in maths
What is the average score on the UK junior maths olympiad?
he
Anna university first semester maths question paper?
yes. ptbe first sem maths questions
