Answer:
See below
Step-by-step explanation:
Need the choices.....
essentially, you can multiply this equation by any constant to get an equivalent equation with the same solutions.
x^2 + 8x + 2 = 0 multiply both sides by '3' to get
3x^2 + 24 x + 6 = 0 <===== this will have the same solutions
or this one:
x^2 + 8x + 2 = 0 Multiply both sides by '6' to get
6x^2 + 48x + 12 = 0 <===== this will have the same solutions also
etc....
D= difference in height
A= Alex's height (1.6m) N= Noah's height (1.5A)
Step 1:
D=N-A
substitute N= 1.5 A in for N
D= 1.5(1.6) - 1.6
D= 2.4 - 1.6
D= 0.8 m difference in height
Step 2:
Convert meters to centimeters 1 m = 100 centimeters
0.8 x 100-80cm
Noah is 80cm taller than Alex.
Hope this helps! :)
I got 347 as the number because 23% of 347 is almost 80.
(<span>23 *<span>347)/100 = 79.81
23*347= 7981
7981/100 = 79.81
Round that and you get 80.</span></span>
