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The number of boys in the ninth grade is 12 less than twice the number of girls there are 51 students in the ninth grade how many are girls?
Wiki User
∙ 14y ago
Let's say the number of girls is x and the number of boys is y. Then the information we have is:
There are 51 students, so: x + y = 51
And 12 less than twice the number of girls are boys, so: y = 2x-12
Replace y in the first equation with the second and you get:
x + (2x-12) = 51
3x = 63
x = 21
So there are 21 girls in the ninth grade. To check back, that means there should be 30 boys, and that is indeed 12 less than twice the number of girls.
Wiki User
∙ 14y ago
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The number of boys in ninth grade is 12 less than twice the number of girls There are 51 students in ninth grade How many are girl?
According to the information given, there are 21 girls in the ninth grade.
The number of boys in ninth grade is 12 less than twice the number of girlsthere are 51 astudents in ninth grade how many are girls?
If the number of boys in ninth grade is 12 less than twice the number of girls there are 51 astudents in ninth grade then the number of girls is 21
The number of boys in ninth grade is 12 less than twice the number of girls. There are 51 students in ninth grade. How many are girls?
Let's lay out the known information in equations, where B is the number of boys and G is the number of girls. Then we express the number B in terms of G, which is twice as much less 12, or (2G-12) B + G = 51 , and B = 2G - 12 Now, replace the B in the first equation with its value from the second equation (2G - 12) + G = 51 Remove the brackets 2G - 12 + G = 51 Add 12 to both sides 2G + G = 51 + 12 3G = 63 Divide both sides by 3 G = 21 Now, to check if we're right, Replace G in the first equation B + 21 = 51 B = 30 If that's right then 30 = 2(21) - 12 30 = 42 - 12 And it is, so we know that there are 21 girls and 30 boys in ninth grade.
When was Ninth Grade Slays created?
Ninth Grade Slays was created in 2008.
How does ninth grade slays end?
Read it.
The number of boys in ninth grade is 12 less than twice the number of girls There are 51 students in ninth grade How many are girl?
According to the information given, there are 21 girls in the ninth grade.
The number of boys in ninth grade is 12 less than twice the number of girlsthere are 51 astudents in ninth grade how many are girls?
If the number of boys in ninth grade is 12 less than twice the number of girls there are 51 astudents in ninth grade then the number of girls is 21
Students can take the Aspire test in ninth and grade?
Ninth and tenth grade
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Yes, in the American education system, freshman typically refers to students in their first year of high school, which is usually equivalent to ninth grade.
Who has read the story 'The Cask of Amontillado'?
Students in high school read The Cask of Amontillado, usually in ninth grade.
The number of boys in ninth grade is 12 less than twice the number of girls. There are 51 students in ninth grade. How many are girls?
Let's lay out the known information in equations, where B is the number of boys and G is the number of girls. Then we express the number B in terms of G, which is twice as much less 12, or (2G-12) B + G = 51 , and B = 2G - 12 Now, replace the B in the first equation with its value from the second equation (2G - 12) + G = 51 Remove the brackets 2G - 12 + G = 51 Add 12 to both sides 2G + G = 51 + 12 3G = 63 Divide both sides by 3 G = 21 Now, to check if we're right, Replace G in the first equation B + 21 = 51 B = 30 If that's right then 30 = 2(21) - 12 30 = 42 - 12 And it is, so we know that there are 21 girls and 30 boys in ninth grade.
The number of boys in ninth grade is 12 less than twice the number of girls There are 51 students in ninth grade How many are girls?
Let's lay out the known information in equations, where B is the number of boys and G is the number of girls. Then we express the number B in terms of G, which is twice as much less 12, or (2G-12) B + G = 51 , and B = 2G - 12 Now, replace the B in the first equation with its value from the second equation (2G - 12) + G = 51 Remove the brackets 2G - 12 + G = 51 Add 12 to both sides 2G + G = 51 + 12 3G = 63 Divide both sides by 3 G = 21 Now, to check if we're right, Replace G in the first equation B + 21 = 51 B = 30 If that's right then 30 = 2(21) - 12 30 = 42 - 12 And it is, so we know that there are 21 girls and 30 boys in ninth grade.
How old do you have to be to drop out of ninth grade?
You're dumb to drop out in ninth grade.
When was Ninth Grade Slays created?
Ninth Grade Slays was created in 2008.
What is the motto of Sheryl Searcy Ninth Grade Center?
Sheryl Searcy Ninth Grade Center's motto is 'Where Ninth Comes First!'.
What group is the most homogeneous?
A group of ninth grade girls, who are all white and are 15 years old. Hope this helps. :)
When you finish your eighth grade school Year do you become a freshmen then or when your ninth grade year starts?
If your ninth grade is in high school, then you are a freshman. Otherwise, you're a ninth-grader.
