1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadezda [96]
3 years ago
10

A refund of $3.15 on a $8.64 bill

Mathematics
2 answers:
Monica [59]3 years ago
8 0

Answer:

Step-by-step explanation:

3.15-8.64 is5.49 hope this helps

Varvara68 [4.7K]3 years ago
5 0

8.64 - 3.15 = $5.49 if this is what you are asking

You might be interested in
WILL GIVE BRAINLIEST<br> FIND VOLUME<br> 60 is the area of the base
scoundrel [369]
Hey so yeah this can be a challenging problem, Vol (V) is much easier to solve than surface area (SA), but I'll show you how it's done, my friend.
First of all, V (prism) = area of base (B) × h
We know that the height (h) of this prism is given, which we'll need later on: h = 5 ft, and area of base (B) is given as 60 ft2
So V = 60 ft2 × 5 ft = 300 ft3

So now for the hard part... how to calculate the SA of this prism

IF YOU DON'T NEED SA FOR THIS TYPE OF PROBLEM, DO NOT PROCEED!!!
[VERY DETAILED]

means solving the dimensions (sides) of that pesky polygon base (B) or lid.
The most important things about polygons are:
1) is it regular (same angle ° and side length)??
2) How many sides or angles??

This has to be regular, because they give you no other info so it has to be, in order to solve. And then it has 5 sides and angles = regular pentagon. ("penta" means 5).

Now there are 360° in any circle, so:
take the central angles of where the sides meet at the center forming triangles (see drawing above), each of those (5) central <'s = 360/5 = 72°
Now the apex of each of these triangles = 72°
but with our 5 triangles, we need to find the height of each triangle -- which is the midpoint of the side (base (b) of triangle), and h is perpendicular to this b. By bisecting that apex angle of 72, it forms 2 equal right triangles of
72/2 = 36°. So each right triangle has 36, 90, and?? 180-36-90 = 90-36 = 54°
let's call the base (b) = 1 side of pentagon
= side (s)
Therefore (see 2nd image drawn above) tangent (tan) of € = opposite/adjacent, or
tan (54) = h÷1/2b --> h = [tan (54)]×(1/2)b
1/2b = h/[tan (54)] = h/1.38

Also the area of each of the larger 5 triangles A(t) = 1/2b×h, and that area A(t) × 5 = area of whole pentagon base A(B)
So now after all that... our A(B) given at beginning = 60ft2. let's put it all together:
1/2b = h/[tan (54)] = h/1.38
A(t) = 1/2b×h, and A(B) = 5×A(t)
which means that A(B) = 5×(1/2b×h)
AND since the other calculation shows that 1/2b = h/1.38, plug that value into the A(B) formula...
.
.
.

now that we have height (h) of each triangle, we can go back to our tan equation for the triangle: tan (54) = 1.38 = h/(1/2b)
--> 1/2×b = h/1.38 --> base (b) = 2h/1.38
b = 2(4.06 ft)/1.38 = 8.12 ft/1.38 = 5.90 ft, for which b us also the width of each rectangular side panel (w)
length (l) of these sides was given as height of the whole prism = 5 ft

NOW FINALLY... THE FINAL SURFACE AREA OF THE PRISM (SA) = (2×A(B)) + (5×rectangular side)
SA = (2×60 ft​2) + (5×(l×w)) = 120 ft2 + 5×5ft×5.9ft
SA = 120 ft2 + 147.62 ft2 = 267.62 ft2

4 0
3 years ago
4x + y = 46.75 help!!<br> A 8.50<br> B 8.75<br> C 9.50<br> D12.75
WARRIOR [948]

Answer:

d is the answer

Step-by-step explanation:

3 0
3 years ago
Norman weighed his loaded trucks of apples at a weigh station. It weighed 15 tons 100 lbs. his empty truck weighed 3 tons 200 lb
mojhsa [17]
The answer would be 11 tons 1,900 lbs :D
7 0
3 years ago
Read 2 more answers
A gift box is the shape of a rectangular prism. The box has a length of 24 centimeters, a width of 10 centimeters, and a height
Kamila [148]
Volume (V) is (=) Length (L) times (x) Width (W) times (x) Height (H) so V = L x V x H. 

Add the variables to the equation.
V = 24 x 10 x 13

Solve
V = 3120

So the volume of the gift box is 3120 cm
6 0
3 years ago
If 30.0 moles of oxygen are used, how many grams of water will form?
liberstina [14]

Answer:

3

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • In a packing plant, one of the machines packs jars into a box. A sales rep for a packing machine manufacturer comes into the pla
    15·1 answer
  • Evaluate the integral (e^x)/((e^2x)+3) from 0 to infinity
    15·1 answer
  • What are the four main legal structures for a business in the United states
    9·1 answer
  • Vladimir buys 1.20 pounds of Skittles, 7.2 pounds of M&amp;Ms, and 5.2 pounds of pretzels. If the candy cost $1.20 a pound and t
    8·1 answer
  • What is the solution to the system of equations below?
    14·1 answer
  • A garden hose uses 1⁄10 of a gallon of water per second. How many gallons will the hose use in 1⁄3 hour?
    10·1 answer
  • What is the x intercept ?
    10·1 answer
  • No explanation needed, just correct answer please.
    5·1 answer
  • Plz answer correctly
    7·1 answer
  • 213 (2 significant figures) ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!