Answer:
2.5
Step-by-step explanation:
4/10 = 2.5 so the bigger triangle is 2.5 times bigger than the smaller one
Subtract 5 to both sides so that the equation becomes -2x^2 + 6x - 1 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
x = [ -b ± √(b^2 - 4ac) ] / (2a)
x = [ -6 ± √((6)^2 - 4(-2)(-1)) ] / ( 2(-2) )
x = [-6 ± √(36 - (8) ) ] / ( -4 )
x = [-6 ± √(28) ] / (-4)
x = [-6 ± 2*sqrt(7) ] / (-4 )
x =3/2 ± -sqrt(7)/ 2
The answers are 3/2 + sqrt(7)/2 and 3/2 - sqrt(7)/2.
5=ones
2=tens
5=hundreds
4=thousands
3=ten thousands
So, taking 149.98 and subtracting the non-taxable total, 26.95, you are left with 123.03, which to equal 10.07 would have to be multiplied by 0.0819, hence the sales tax is 0.0819.
Answer:
the tax is $52.50 and the total is $802.50
Step-by-step explanation:
