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
sashaice [31]
3 years ago
15

Ronnie marks up items at his store by 45%. He buys kazoo's for $1.30. How much will he sell them for when he applies the mark up

?
A.
$1.89
B.
$58.50
C.
$0.59
D.
$1.75
Mathematics
1 answer:
wel3 years ago
6 0

Answer:

A

Step-by-step explanation:

1.3 times.45+1.3

You might be interested in
How to construct a triangle with side lengths 10 cm and 14 cm and an angle between them of 60 degrees.
Yuliya22 [10]

Answer:

We draw line AB which is perpendicular to the 14 cm side

Since Angle C is 60 degrees that makes angle CAB = 30 degrees

Triangle CAB is a 30 60 90 triangle so line CB is half the hypotenuse or 5 cm

Line BD equals 9 cm

Line AB^2 = 10^2 - 5^2 = 75

Line AD^2 = AB^2 + BD^2

Line AD^2 = 75 + 81

Line AD^2 = 156

Line AD = 12.4899959968

Line AB = Sqr root (75) = 8.6602540378

Angle D = arc sine  (8.6602540378 / 12.4899959968)

Angle D = 43.898 degrees

Angle A = 180 - 60 - 43.898 = 76.102 degrees

*****************************************************************

Actually this could have been done a little easier by using the Law of Cosines and then the Law of Sines, but I just thought I'd show another way to solve this.

Step-by-step explanation:

4 0
3 years ago
Two-step equations. Solve X 7x - 32 = 3
tester [92]
7x-32=3
7x=3+32
7x=35
x=35/7
x=5
HOPE IT HELPS U!!
have a great day ahead ! :)
4 0
2 years ago
Pls solve and send on snap<br> j.aeg
padilas [110]
Y’all da file shi is fakeeeee
6 0
3 years ago
1. If a tank leaks 10 mL of fluid each hour, how long will it take to fill up a one liter jar?
AnnZ [28]
Q1. The answer is 100 hours


10 ml is for 1 hours
1l is for x hours
1l = 1000 ml

So, make a proportion: 
10 ml is for 1 hours
1000 ml is for x
10 ml : 1h = 1000 ml : x
x = 1h * 1000 ml : 10 ml = 100 hours



Q2. The answers are:

1. kg - measurement of mass
2. cm² - measurement of area
3. L - measurement of volume (1L = 1 dm³)
4. m - measurement of length
8 0
3 years ago
Tan(x+pi) + 2sin(x+pi)=0<br><br>can you help prove this and make the left side equal the right?
vladimir1956 [14]

This is not an identity but an equation. You're supposed to find the values of x for which this is true. It is *not* true for all values of x.

To see why:

\tan x has period \pi, which means \tan(x+\pi)=\tan x.

The angle sum identity for \sin x says that

\sin(x+\pi)=\sin x\cos \pi+\cos x\sin\pi=-\sin x

So

\tan(x+\pi)+2\sin(x+\pi)=\tan x-2\sin x

By definition of \tan x,

\tan x=\dfrac{\sin x}{\cos x}

and so

\tan x-2\sin x=\sin x\left(\dfrac1{\cos x}-2\right)

which is only 0 if either \sin x=0 (which only happens for certain values of x) or \dfrac1{\cos x}-2=0\implies\cos x=\dfrac12 (which also only happens for certain values of x). It's these values of x you want to find.

\sin x=0 whenever x is a multiple of \pi, i.e. x=n\pi for any integer n.

If 0\le x, then \cos x=\dfrac12 is true for x=\dfrac\pi3 and x=\dfrac{5\pi}3. Then to account for all other possible values, we add a multiple of 2\pi, so that x=\dfrac\pi3+2n\pi or x=\dfrac{5\pi}3+2n\pi for integers n.

5 0
3 years ago
Other questions:
  • 2x+6y when X= 4/5 and y= 1/3
    13·2 answers
  • 70% of what number is 21 and how do you do it
    11·2 answers
  • Find the area. simply your answer <br><br> 2x<br> 3x
    8·2 answers
  • Everyone needs to get off of social and help us -_-
    5·1 answer
  • 1.Match the graph to the number of solutions. Choose: -One solution -infinite solutions -two solutions -three solutions no solut
    10·1 answer
  • Solve for the value of X squared.
    5·2 answers
  • 10x –3 = 4x + 8 What Is X?
    8·1 answer
  • What do the flat parts of a graph represent
    10·1 answer
  • Use the substitution method to solve the system of equations: y = 2x + 7; x = 9
    9·1 answer
  • Drag the expressions to the correct functions. Not all expressions will be used.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!