Answer:
12
Step-by-step explanation:
(x / 2) + 4 = 10
(x + 2 * 4 ) / 2 = 10
x + 8 = 20
x = 20 - 8
x = 12
or just
x /2 = 10 -4 = 6
x = 6 * 2 = 12
Answer:
$75
Step-by-step explanation:
Answer:
$28.83
Step-by-step explanation:
We will use: and then use cross multiplication.
Let's solve the first sale
We have:
percent = 25%
whole = $200
we want to solve for "part". Lets set the equation up before we plug anything in
now plug everything in:
part = $50
what does this mean?
Well it actually means $50 is the amount of money we take away from our original price of $200.
So we subtract that from our total.
$200 - $50 = $150
Next we will do the second sale.
percent = 50%
whole = $150
Use the same equation as above:
part = $75
The two numbers are a and b.
Because their sum is 0, therefore
a + b = 0 (1)
Because their difference is 2, therefore
a - b = 2 (2)
Add (1) and (2).
a + b + (a - b) = 0 + 2
2a = 2
a = 1
From (1), obtain
1 + b = 0
b = -1
Answer:
a = 1
b = -1
Answer:
C. 50.24 feet
Step-by-step explanation:
The formula for circumference is 2rπ (two times radius times pi)
2 * 8 * 3.14 = 50.24
C is the answer! Hope this helps!