Answer:
450 = (15·x) -50
Step-by-step explanation:
You know that the TV cost $450
She already have $50
you know she saves $15/month
The standard form of the equation of a circle of radius r, with (assuming centre h, k) is given as:
(X-h)^2 + (y-k)^2 = r^2
As we are required to write an equation in standard form for the circle with radius 9 centred at the origin.
Centre(h,k)=(0,0), r=9
Substituting these values into the standard form of the equation of a circle given above:
(X-0)^2 + (y-0)^2 = 9^2
X^2 + y^2 =81
The standard form is x^2 + y^2 =81
I’m pretty sure this is right
Answer:
There are three fourths in 3 fourths
Step-by-step explanation:
Fourth represents 
Therefore, 3 fourths will be given as:
Therefore,
No. of fourths in 3 fourths = 
No. of fourths in 3 fourths = 
Answer:
n=7 d=8
Step-by-step explanation:
n+d=15 d=15-n
0.05n+0.1(15-n)=1.15
0.05n-0.1n+1.5=1.15
-0.05n=-0.35
n=7 d=8
