Y=0x + -5 should be the correct answer
The problem statement is not clear regarding which money is invested. We will assume it is the 80% of $8750 that is set aside for future education. That amount is
... 0.80 × $8750 = $7000
If x represents the amount invested at 7%, then the total interest earned is
... (7000 -x)×4% + (x)×7% = 420
... 280 +0.03x = 420
... x = 140/0.03 ≈ 4666.67
$4666.67 was invested at 7%.
$2333.33 was invested at 4%.
Question 3) Bank Branch
question 4) The distance between the bank and your home
Answer:
8
Step-by-step explanation:
To solve for ED, create proportion between the two similar triangles.

where Big represents the bigger triangle an little represents the smaller triangle.

Cross multiply and solve for x.
9(x+4)=6(2x+4)
9x+36=12x+24
9x+36-24=12x+24-24
9x+12=12x
9x-9x+12=12x-9x
12=3x
4=x
Lastly substitute the value into ED which is x+4.
4+4=8
Answer:

Step-by-step explanation:
The area of a triangle is equal to its base time its height and then divided by 2. This can be written as...

Therefore the area of the triangle in this case it equal to...



