Hey there, Alex!
She would expect 55 of them to be left handed.
Work: 550 / 20 = 27.5
27.5 x 2 = 55
Hope I was able to help!
Half the x-coefficient is -3, so the equation needs to be rearranged into a form that looks like
x² -6x +(-3)² + [something]
You can get there by adding and subtracting 9 from the original equation.
y = x² -6x +9 +7 -9 . . . . . 9 added and subtracted
y = (x² -6x +9) -2
The quantity in parentheses is a perfect square, so we can write the equation in the desired form as ...
y = (x -3)² -2
Answer:
3.5m is 500% of 70 cm and 70 cm is 20% of 3.5m.
Step-by-step explanation:
70 cm = 70cm/100= 0.7m
To solve the first problem use this equation:
3.5/0.7 *100 to get 500%
And to solve the second problem you use the same equation:
0.7/3.5*100 to get 20%
Hope this helps you.
ANSWER:
0
EXPLANATION:
3/7=0.4
if the number to the right of decimal point is 0.5 and higher,then add 1 to the left of the decimal point.
if the number to the right is less than 0.5,leave the number to the left and remove the digit to the right decimal point.
I think the answer is true.
