Thus the expression is 0.15x.
Given,
A reasonable tip for some is 15% of the subtotal.
We need to write an expression that would represent how much tip you should leave if x represented the subtotal.
<h3>How to write the percentage of a quantity?</h3>
Let the quantity be 100.
5% of 100 = 5/100 x 100 = 5
10% of 100 = 10/100 x 100 = 10
50% of 100 = 50/100 x 100 = 50
We have,
Subtotal = x
Tip = 15%
Write the expression for 15% of x
15% of x
= 15/100 x (x)
= 0.15x
Thus the expression is 0.15x.
Learn more about writing an expression that represents the total amount paid here:
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Answer:
Step-by-step explanation:
Given
<em>See attachment for right triangle</em>
Required
Solve for VW, WX and
First, calculate VW
To do this, we make use of:
In this case,
Make VW the subject
In radical form:
To solve for WX, we make use of Pythagoras Theorem, we make use of:
Subtract 36 from both sides
Take the square root of both sides
Solving
To do this, we make use of:
Make V the subject
Answer:
Growth;
A = 20,000(1.08)^t
A = 40(3)^t
P = 1700(1.07)^t
Decay;
A = 80(1/2)^t
A = 1600(0.8)^t
P = 1700(0.93)^t
Step-by-step explanation:
The key to differentiate between decay and growth is the term inside the bracket
For growth, the term inside the bracket is greater than 1, while for decay, the term inside the bracket is less than 1
Looking at the given equations, we have;
Growth;
A = 20,000(1.08)^t
A = 40(3)^t
P = 1700(1.07)^t
Decay;
A = 80(1/2)^t
A = 1600(0.8)^t
P = 1700(0.93)^t
Answer:
2.78 days 66.67 hours
Step-by-step explanation:
Hello,
y=x+2==>x-y=-2 (1)
6x-4y=-10==>3x-2y=-5 (2)
-2*(1)+(2)==>x=4-5==>x=-1
(1)==>y=-1+2=1
sol ={(-1,1)}