Answer:
9.4606 × 10^12
Step-by-step explanation:
They would have to have opposite slopes. ex: Y=2x+4 | Y=-1/2x+8 or if you are asking in general you could write. LINE AB | LINE CD
So to start off with this problem, let us call the amount invested in Plan A and B as a and b respectively.
So equation 1: a + b = 250,000
Next, we need to get an equation which is equal to 10,000. So the interest rate in plan a + interest rate in plan b would be equal to 10,000. Rewriting this sentence will give us:
Equation 2: .028a + 0.078b = 10,000
Rewrite the first equation into a = 250,000 - b, and then plug the value into equation 2.
.028(250,000 - b) + 0.078b = 10,000
7,000 - 0.028b + 0.078b = 10,000
-0.028b + 0.078b = 10,000 - 7,000
0.05b = 3,000
b = $60000 amount invested at 2.8% while
250,000 - 60,000 = $190,000 is the amount invested at 7.8%
Answer:
The afternoon temperature is
5°
Step-by-step explanation:
Step one:
given data
the morning temperature= -15°
the afternoon temperature rose by 20°
Required
The afternoon temperature
Step two:
Hence the afternoon temperature is given as
=-15°+20°
= 5°
