Answer:
Your answer is $41.60
Due to the fact that u just need to add 4% to 40
(☞゚ヮ゚)☞ $41.60 ☜(゚ヮ゚☜)
Answer:
I think it would be dream shopping if you are good at math. If you are bad it's a real nightmare. At least that's what I think
Let the number of nickels be x, the number of dimes is x+8
but
1 nickel=$0.05
1 dime=$0.1
thus, the total amount Susan has will be:
0.05x+0.1(x+8)=3.05
0.05x+0.1x+0.8=3.05
0.15x=2.25
x=2.25/0.15
x=15
thus the number of nickels is 15
number of dimes is 15+8=23
<u>The correct answer is </u><u>8.5 in.</u>
<h3 /><h3>What is Heron's formula in math?</h3>
- Heron's formula, formula credited to Heron of Alexandria for finding the area of a triangle in terms of the lengths of its sides.
- In symbols, if a, b, and c are the lengths of the sides: Area = Square root of√s(s - a)(s - b)(s - c) where s is half the perimeter, or (a + b + c)/2.
we know that
The formula of area of triangle is equal to
We have
b = BC = 6 in
h = AD = x in
substitute
Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.
Let a,b,c be the lengths of the sides of a triangle.
The area is given by:-
where p is half the perimeter
a = 9 in , b= 9 in, c = 6 in
Find the area
Substitute the value of the area in the equation 1 and solve for x
25.46 = 3x
x = 25.46/3
x = 8.5 in
Learn more about Heron's Formula
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Answer:
<em>45 minutes </em>
Step-by-step explanation:
We want to know how long it takes to an airplane to fly a distance of 375 miles, if the speed of the airplane is 500 miles per hour.
For this, we should divide the distance/speed to get the time that the plane needs.
T = 375mi/(500mi/h) = 0.75 hours
The plane needs 0.75 hours or 0.75*60 = 45 minutes to fly that distance.