Answer: B
-3 x 4x = -12x
-3 x -0.50 = 1.50
-12x + 1.50
Hope this helped! :D
R=2.5 maybe
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Answer:
$815
Step-by-step explanation:
Given data
Principal= $500
Rate= 9%
TIme= 7 years
The simple interest formula is
A=P(1+rt)
substitute
A= 500(1+0.09*7)
A=500(1+0.63)
A= 500*1.63
A=$815
<span>c(ad)+x=bd+ad(yz)
step 1:
first we separate x and y , so
x=bd+adyz-cad
Note: i) (yz) can be written as yz
ii) when the term cad comes to right side it becomes -cad, because it is with the addition operation in the left hand side. (it is a general rule of mathematics)
step 2: then we take out the common data from the above equation, so the common term for all terms in the right hand side is 'd',
so, x=d(b+ayz-ca)
step 3: now we need to find d, so
d =x/b+ayz-ca
Note: the term (b+ayz-ca) becomes the divisor of x since it is in the multiplication term on right hand side. so when moving it to left side, it becomes a division operator. (it is also a general rule of mathematics)
so d =x/b+ayz-ca</span>
M<r is 31 degrees. simply put all the angles equal to 180. solve for x, then plug that value back into the equation
