Answer:
A. 2:1
B. 1:2
Step-by-step explanation:
Since girls are 2/3 of class, the remaining 1/3 are boys. So,
NB: I used the infinity sign for rationality sign, because I couldn't get the sign here
Answer:
y = 3x + 1
Step-by-step explanation:
' y = 3x + 1 ' is a equation of a linear function. The equation is in slope-intercept form. All slope intercept-form lines are linear.
An equation for a linear function has no exponents, no variables in fractions, and no square roots.
Hope this helps.
Answer:
4
Step-by-step explanation:
Divide 28 by 7 and get 4.
Answer:
c
Step-by-step explanation:
The solutions of the equation are -12 and 16
Step-by-step explanation:
Absolute value describes the distance of a number on the number line from 0 without considering which direction from zero the number lies. The absolute value of a number is never negative, if IxI = a, where a > 0, then
∵ 2Ix - 2I - 8 = 20
- At first add 8 to both sides
∴ 2Ix - 2I = 28
- Then divide both sides by 2
∴ Ix - 2I = 14
Now By using the notes above equate x - 2 by 14 and -14
∵ x - 2 = 14
- Add 2 to both sides
∴ x = 16
∵ x - 2 = -14
- Add 2 to both sides
∴ x = -12
The solutions of the equation are -12 and 16
Learn more:
You can learn more about solving equations in brainly.com/question/2386054
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