43.55 dollars
price between 3.99 and 3.01
trial and error method
43.55 divided by a random number between the range of prices (3.99 and 3.01)
43.55 divided by 3.35 is 13
13 pies were sold and each was sold at 3.35 dollars
Answer:
Step-by-step explanation:
vtrtv
Answer:
1. 2x^2+6x=0 <--> 2x(x+3)=0
2.4x-x^2=0 <--> x(4-x)=0
3.14x-7x^2=0 <--> 7x(2-x)=0
4.24x-6x^2=0 <--> 6x(4-x)=0
Step-by-step explanation:
just try to expand the answer given for example when you look at no.1, 2x•x=2x^2 so look for the equation where there is a 2x^2 in it.
for finding the solution, for example when you look at no.1 again, you have 2x=0 so x=0/2=0 and you also have x+3=0 so x=-3
this applies to all the pther no.
The sum of an angle and its complement =90°
The angle is 59°; its complement is 31°
Step-by-step explanation:
Given measure of an angle is 28 degrees greater than its complement.
By definition the sum of an angle and its complement =90°
Let the angle be x
The angle's complement must be x−28° (from the given information)
x+(x−28°)=90° or
2x= 118° or
x= 59° or
So the angle is 59° and its complement is 59°−28°=31°
45 is exactly half of 90
that means 45 is 50% of 90.