Answer:
a). -5.7 meters or 5.7 meters below sea level
b). When we combine the two depths we sum them since they are an increment in the same direction and we sum them from the seal level, our first reference point.
Step-by-step explanation:
a). Final depth=Initial depth+deeper increment=(-1.5)+(-4.2)=-5.7
Initial depth=-1.5 represented by a negative number since she is below sea level, meaning her reference point(point 0) is the sea level. The more she moves below the sea level the deeper she goes and the more her depth becomes negative
Deeper increment=-4.1, she further moves deeper from her initial depth(-1.5) by a value of -4.1. In order to find her final depth, we have to sum all the depths she covered from her first reference point which is the see level.
The expression is;
Final depth=Initial depth+deeper increment=(-1.5)+(-4.2)=-5.7 meters
Her final depth=-5.7 meters
b). When we combine the two depths we sum them since they are an increment in the same direction and we sum them from the seal level, our first reference point.
Answer:
39 investors contributed $6,000, and 21 investors contributed $12,000.
Step-by-step explanation:
Let's say that x investors contributed $6,000, and y investors contributed $12,000.
x + y = 60
6,000x + 12,000y = 486,000
x + 2y = 81
x + y = 60
y = 21
x + 21 = 60
x = 39
So, 39 investors contributed $6,000, and 21 investors contributed $12,000.
Hope this helps!
C and D are correct as you move the decimal however many zeros are on the end of the multiplier. For instance, 10 equals one decimal change as it only has one zero. 100 has two and 1000 has three, etc.
Answer: 288
Explanation:
Split the shape up into a rectangle and triangle (shown in picture).
Find the lengths of the triangle:
Height:
28 - 12 = 16
Base:
16 - 4 = 12
Find the area of the rectangle:
12 x 16 = 192
Find are of the triangle:
(12 x 16) ÷ 2 = 96
Add them together:
96 + 192 = 288
I hope this helped. If you hang questions feel free to ask.
