Answer:
a)F
b)A
c)F
d)F
Step-by-step explanation:
a)3+4=7 which is the total number of pupils in class
So, the fraction should be 3/7✅not 3/4❌
b) The girls in the class are 4 and the total number of pupils in class are 7. So, the fraction is correct✅.
c) The number of boys in class is 3✅ which is given in the ratio. Not 6❌
d) If you add the both numbers in the ratio, you will get the total number of pupils which is 7✅not 12❌
Hope this will help ya!
Answer:
x = - 6 ± 
Step-by-step explanation:
Given
x² + 12x = 1
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(6)x + 36 = 1 + 36
(x + 6)² = 37 ( take the square root of both sides )
x + 6 = ± ( subtract 6 from both sides )
x = - 6 ± ← exact solutions
Answer:
x= 8
Step-by-step explanation:
103 - 4x = 71
You have to isolate -4x by using the subtraction property of equality on 103
103(-103) -4x = 71(-103)
-4x = -32
Use Multiplication Property of Equality for the negative
4x = 32
Divide 4 from both sides
x= 8
Answer: Maybe 72 cm?
Step-by-step explanation: I did 6 times 12
Sorry if it’s wrong :(
