Answer: x = 12
Step-by-step explanation:
We can see two triangles rectangles, we will use the angle S to solve this, as this angle is common to both triangles.
We know that:
cos(S) = adj cathetus/hipotenuse.
Then we have, for the triangle SRT.
Cos(S) = 9/SR.
for the big triangle, SQR, we have:
Cos(S) = SR/(9 + 16)
now we can find the quotient of those two equations and get:
cos(S)/cos(S) = 9/Sr*(9+16)/SR
SR^2 = 9*(25)
SR = 15.
Now with this side we can find the value of x.
We can use the Pythagorean theorem in the triangle SRT, where the sum of the squared cathetus is equal to the hypotenuse:
9^2 + x^2 = 15^2
x = √(15^2 - 9^2) = 12
Step-by-step explanation:
Doing all that multiplying gives us a simple interest of $65.75
Answer: It's 65.9
Step-by-step explanation:
<h3>decreased by 7.5%</h3>
<h3>means 100% - 7.5% = 92.5%</h3>
<h3>92.5% * x = 61</h3>
<h3>x= 61 / 92.5%</h3>
<h3>x = 65.9459</h3>
<h3>to the nearest tenth :</h3>
<h3>original number is 65.9</h3><h3>Hope this helps have a awesome day/night❤️✨</h3>
A lot of numbers and it really depends
7/8
Step-by-step explanation:
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