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
Sonbull [250]
4 years ago
10

How many nickels and dimes are in $5.20 if there are six times more nickels than dimes?

Mathematics
1 answer:
Zina [86]4 years ago
5 0
N=6*d
0.05*n + 0.10*d = 5.20
0.3d+0.1d =5.20
d = 5.20/0.4 = 13
13 dimes and 78 nickels
You might be interested in
Help ASAP!!<br>Using the graphed function above, find the following
Alenkinab [10]

Answer:

Maximum: 1, Minimum: -3, Midline y = -1, Amplitude = 4, Period = \pi, Frequency \displaystyle =\frac{1}{\pi},  equation : f(x)=-4cos(2x)+1

Step-by-step explanation:

<u>Sinusoid Functions</u>

It refers to the oscillating functions like the sine or cosine which range from a minimum and maximum value periodically.

The graph shown can give us all the information we need to answer these questions:

Maximum: 1

Minimum: -3

The midline goes through the center value (mean) of the max and min values, i.e.

Equation of the midline:

\displaystyle y=\frac{1-3}{2}=-1

Amplitude is the difference between the maximum and minimum values

A=1-(-3)=4

The period is the time it takes to complete a cycle. We can see the minimum value is first reached at x=0 and next at x=\pi

Thus the period is

T=\pi

The frequency is the reciprocal of the period:

\displaystyle f=\frac{1}{T}=\frac{1}{\pi}

The angular frequency is

\displaystyle w=2\pi f=\frac{2\pi }{\pi}=2

The equation of the function is a negative cosine (since it starts at the minimum) or a shifted sine or cosine. We'll choose the negative cosine, knowing all the parameters:

f(x)=-4cos(2x)+1

5 0
3 years ago
10. A triangular piece of fabric has an area of 45 square inches. If the
Grace [21]

Answer:

15

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Using the given information,

45 = 1/2 * L * 6

45 = 3L                                simplify

15 = L                                   divide both sides by 3

5 0
3 years ago
The diagram bellow shows several parking spots
Alekssandra [29.7K]

show the right questions

7 0
3 years ago
I need help asap! Thank you.
Serggg [28]
11) A rectangle = 11.5 x 9.5 = 109.25
A triangle = 8x 9.5 = 38
Total area = 109.25 + 38 = 147.25
6 0
3 years ago
Koby can work about 22 math problems in 30 minutes. At this rate how many math problems can Koby work in 3 hours
Murrr4er [49]
132 problems because...

there are six 30 minutes in 3 hours so you would multiply 22 with 6 to get 132 
(22*6=132)
4 0
3 years ago
Read 2 more answers
Other questions:
  • A museum employee surveys a random sample of 350 visitors to the museum. If those visitors, 266 stopped at the gift shop. Based
    13·2 answers
  • Order the following. decimals. from greatest to least. 0.07, 1.06, 0.109, 0.90, 0.601
    11·2 answers
  • At the county fair, animals are judged for the quality of their breeding and health. The animal pens are arranged in an array, w
    7·1 answer
  • What are 4 equivalent fractions for 1/4
    14·2 answers
  • What is 372 divided by 6 in estimation
    15·2 answers
  • At the beginning of year 1, Zack invests $700 at an annual compound interest
    13·2 answers
  • In parallelogram ABCD if ZA equals 155° what is the measure of ZB
    11·1 answer
  • calculate the area of the kitchen if the outer wall with the window is 10 feet, the depth (height) of the kitchen is 7 feet, and
    9·1 answer
  • Estimate each quotient:
    14·1 answer
  • Part B What was the value of trade between Canada, the United States, and Mexico in 19933
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!