70% or C-
Wiki User
∙ 7y agoTo convert (a grade) out of (a potential) into (something) out of 100 multiply (a grade) by 100 and divide the result by(a potential) So that 45 out of 50 = (45 x 100) ÷ 50 = 4500 ÷ 50 = 90% or 21 out of 30 = (21 x 100) ÷ 30 = 2100 ÷ 30 = 70%
65/100
63% or D
When you get 19 out of 30 questions right in the sixth grade," that means that you need to get you grade or score up to @ least 27-28 out of 30 correct." If you have any other questions, please email me at : kianabrown9@aol.com.
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.
21 - thirty minus nine is 21.
80
To convert (a grade) out of (a potential) into (something) out of 100 multiply (a grade) by 100 and divide the result by(a potential) So that 45 out of 50 = (45 x 100) ÷ 50 = 4500 ÷ 50 = 90% or 21 out of 30 = (21 x 100) ÷ 30 = 2100 ÷ 30 = 70%
65/100
83% or B
63% or D
When you get 19 out of 30 questions right in the sixth grade," that means that you need to get you grade or score up to @ least 27-28 out of 30 correct." If you have any other questions, please email me at : kianabrown9@aol.com.
60 D
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.
No.(20)2 = 400(21)2 = 441(20)2 + (21)2 = 881(30)2 = 900(20)2 + (21)2 is not equal to (30)2
go to google and find all of your answer
The New Price Is Right - 1972 3-21 was released on: USA: 30 September 1974