Answer:
B. The rate of increase is 4%
D. 2100 represents the initial deposit.
Step-by-step explanation:
Look at the equation modeling the savings account.
A = 2100(1.04)
1.04 represent the percent the current account is of the previous one.
That is a 4% increase, which remains the same, so B is one of the correct answers.
2100 was the original deposit, so D is correct as well.
Knowing this, B and D are correct.
Answer:
0.15x
Step-by-step explanation:
15% of anything is 15/100 or 0.15 of it. You find that value by multiplying the "anything" by 0.15.
Since we don't know the value of x, the best we can do is show that the number of interest is x multiplied by 0.15.
Answer:
(Sin(5)+5Cos(5), Cos(5)-5Sin(5), 9)
Step-by-step explanation:
The equation of tangent line is , then:
and , we have to (x,y,z) coordinates
x=r(t)+tr'(t), y=r(t)+tr'(t), z=r(t)+tr'(t); so x=Sin(5t)+t(5Cos(5t)), y=Cos(5t)+t(-5Sin(5t)), , to t=1 then:
x=Sin(5)+5Cos(5), y=Cos(5)-5Sin(5), Z=9; Finally (Sin(5)+5Cos(5), Cos(5)-5Sin(5), 9)
You can write an equation to represent this situation. Let x represent the number of girls.
283 = x + (x + 27)
Here, we are adding the number of girls with 27 more people than this amount of girls. This will allow us to add the number of girls, x, with the number of boys, x + 27, to get a total of 283.
This equation can be simplified if we add the like terms together: the x's.
So,
283 = 2x + 27.
Since this is a multi-step equation, we must use the reversed order of operations; undo addition first.
283 - 27 = 2x + 27 - 27
256 = 2x + 0
256 = 2x
Now, we must undo multiplication by dividing.
256/2 = 2x/2
128 = 1x
So, x, the number of girls, is equal to 128.
Hope this helps you! :)
It is 2525. The best way is to solve equations.