Betty's height versus Jinlan's height is 2:3
44 = 2^2 x 11
11+2= 13
13
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44 = <span>0.29545454545</span>
6(-5n+7)=0
We simplify the equation to the form, which is simple to understand
6(-5n+7)=0
Reorder the terms in parentheses
+(-30n+42)=0
Remove unnecessary parentheses
-30n+42=0
We move all terms containing n to the left and all other terms to the right.
-30n=0-42
We simplify left and right side of the equation.
-30n=-42
We divide both sides of the equation by -30 to get n.
n=1.4
Hope this helps!
Multiply the number together ....
(-3x)4 = -12x