Answer:
Discount rate=33%
Step-by-step explanation:
Step 1
Determine the discounted amount as shown;
A=I-F
where;
A=discounted amount
I=initial price/original price
F=final price after discount
In our case;
A=unknown
I=$75
F=$50
replacing;
A=(75-50)=25
The discounted amount=$25
Step 2
Determine the discount rate using the formula;
Discount rate=(discount amount/original amount)×100
Discount rate=(25/75)×100=33.33%
Discount rate=33%
Here's how you do it: you find all the distances between the three points and add them together to calculate the perimeter of the triangle. To calculate for the distance between two points, the formula is
d = √[(x2 - x1)² + (y2 - y1)²]
So, just take two points, assign x1 and x2 with corresponding y1 and y2, then you get the answer.
Points: D(1,4), E(3,-2), C(-3,1)
After substituting the answers would be:
DE = 6.3 units
CE = 6.7 units
CD = 5 units
Perimeter = 6.3 + 6.7 + 5
Perimeter = 18 units
200,000 = 200,000 so the equation is true.
Answer: 7 1/12
B.
Step-by-step explanation:
Rewriting our equation with parts separated
=1+1/4+5+5/6
Solving the whole number parts
1+5=6
Solving the fraction parts
1/4+5/6=?
Find the LCD of 1/4 and 5/6 and rewrite to solve with the equivalent fractions.
LCD = 12 3/12+10/12= 13/12
Simplifying the fraction part, 13/12,
13/12=1 1/12
Combining the whole and fraction parts
6+1+1/12 = 7 1/12
The answer is 1940 or 7:40 which is 5 hours earlier than when she started.
To get the answer you multiply 17 by 30 which is 510. Next you add 510 and 1430 which is 1940. To get to regular time and not military time, subtract 12 from 19 and there you go! Hope this helps!!:))))))
