Answer:
there are 18 girls of 45
Step-by-step explanation:
45 divided by 5=9 9+9=18
In an algebra problem, you don't set the answer-goal and say "Go for it!"
There is only one correct answer, so the only appropriate way to go about it is to say "Here is the equation. Find the solution.?"
Maybe 27 is the solution, and maybe it's not.
We're about to find out.
You said 2/3 x - 7 = 11
Add 7 to each side: 2/3 x = 18
Divide each side by 2 : 1/3 x = 9
Multiply each side by 3 : x = 27 .
So yes, the correct solution is 27. And that's how to find it.
Estimate tree height: 50 ft
First, you'd have to get the hypotenuse of the smaller triangle to get the base of the bigger triangle. This can easily be done using Pythagorean theorem (15^2 + 5^2 = hyp^2). The hyp of smaller triangle/base of bigger triangle is 15.81 ft. Then you'd also want to get the angle adjacent to the 5 ft leg, and opposite the 15 ft leg of the smaller triangle to get one of the two remaining angles of the bigger triangle. This can be done via sohcahtoa, using the TOA part. The inverse tangent of opposite/adj leg will give you the angle you're looking for (71.6 deg). With that, you'll know that the remaining angle is 18.4 deg (sum of all angles is 180). You can solve for the height of the tree/hypotenuse of the bigger triangle by using SOH. Sine of 18.4 is equal to 15.81/hypotenuse. Solving for that will give you around 50 ft.
46 Days
It said I have to have at least 20 characters to explain it well so here.
I hope you have a good day
First find volume of rectangular prism
Area of front side time length
9*6*11 = 594
Next find volume of semi-circular roof
Area of semi-circle times length
0.5*pi*(4.5)^2 * 11 = 111.375*pi = 349.89
Total Volume = 594 + 349.89 = 943.89 = 944