Answer:
C. 11
Step-by-step explanation:
First, find the value of "x" by solving the first equation. You need to move every other number to the other side of "x". When you move a number, you have to do the opposite operation to both sides.
5x + 6 = 10 The opposite of +6 is -6.
5x + 6 - 6 = 10 - 6 Subtract 6 from both sides
5x = 10 - 6 The "6" on the left cancelled out. Simplify the right side
5x = 4 The opposite of multiply by 5 is divide by 5
5x/5 = 4/5 Divide both sides by 5
x = 4/5 Value of "x"
Substitute the value of "x", which is 4/5, in the "x" for the second equation.
10x + 3
= 10(4/5) + 3 Multiply 10 and 4/5
= 
+ 3 Combine into the numerator
= 
+ 3 Divide the top by the bottom
= 8 + 3 Add
= 11 Value of second equation
Therefore the value of 10x + 3 is 11.
Answer
22
Hope this helped
Answer:
12
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 9)² + (y - 4)² = 36 ← is in standard form
with r² = 36 ⇒ r = 
= 6
diameter = 2 × r = 2 × 6 = 12
Sum is the result of adding so
12 + x, but i don't see it as a option.
<u>Answer-</u>
<em>Finance charge is $99</em>
<u>Solution-</u>
Price of mountain bike = $762
The store's financing requires a 15% down payment, so the present value of annuity will be,
We know that,
![\text{PV of annuity}=P[\frac{1-(1+r)^{-n}}{r}]](https://tex.z-dn.net/?f=%5Ctext%7BPV%20of%20annuity%7D%3DP%5B%5Cfrac%7B1-%281%2Br%29%5E%7B-n%7D%7D%7Br%7D%5D)
Putting the values,
![\Rightarrow 647.7=P[\dfrac{1-(1+\frac{14}{1200})^{-24}}{\frac{14}{1200}}]](https://tex.z-dn.net/?f=%5CRightarrow%20647.7%3DP%5B%5Cdfrac%7B1-%281%2B%5Cfrac%7B14%7D%7B1200%7D%29%5E%7B-24%7D%7D%7B%5Cfrac%7B14%7D%7B1200%7D%7D%5D)
With a monthly payment of this, he will be paying in 24 months will be,
Then,
The extra amount he will be paying,
