The answer is 225 dollars because you divide 150/20=7.5 then multiply 7.5(30) and you get 225
It does not matter which he does first. Either way, zero pairs will be created on both sides, which will isolate the variable to determine x<span>. Adding the </span>x<span>-tiles and then the unit tile, or visa versa, will give the same solution.</span>
Answer:
Step-by-step explanation:
we know that
The perimeter of rectangle is equal to
In this problem we have
substitute in the formula and solve for L
simplify
19 if u add all separately but it is 89 it u don't
Answer:
=14.69km²
Step-by-step explanation:
We can use the Hero's formula to calculate the area
A= √(s(s-a)(s-b)(s-c))
s is obtained by adding the lengths of the three sides of the triangle and then dividing by 2, a, b and c are the ides of the triangle.
S=(5+6+7)/2
=9
A=√(9(9-6)(9-5)(9-7))
=√(9×3×4×2)
=√216
=14.69km²
