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
bixtya [17]
2 years ago
12

2

Mathematics
1 answer:
Gemiola [76]2 years ago
7 0

9514 1404 393

Answer:

  • 14 nickels
  • 6 dimes

Step-by-step explanation:

The system of equations can be written ...

  n + d = 20 . . . . . . . . coins in the jar

  5n +10d = 130 . . . . . value in cents

_____

Using the first equation, we can write an expression for n:

  n = 20 -d

We can substitute this into the second equation:

  5(20 -d) +10d = 130

  100 +5d = 130 . . . . . . simplify

  5d = 30 . . . . . . . . . . . . subtract 100

  d = 6 . . . . . . . . . . . . divide by 5

  n = 20-d = 14

The jar contains 14 nickels and 6 dimes.

You might be interested in
Which graph shows a method for finding the image of point D if the parallelogram is reflected across the dashed line?
Sloan [31]

Answer:

option B

Step-by-step explanation:

Given : A parallelogram ABCD

To find : Which graph shows a method for finding the image of point D if the parallelogram is reflected across the dashed line?

Since forming the reflected image follows Every point on the image will be the same distance as its corresponding point from the pre-image.  

This distance will be perpendicular to the line of reflection i.e. dashed line  

And the second option shows the correct image .

In the second image the perpendicular was draw along the axis of reflection .

Hence the option B is correct .


7 0
3 years ago
Read 2 more answers
Anna hiked 95⁄8 miles in 23⁄4 hours. How fast did she walk overall? A. 31⁄4 miles per hour B. 35⁄8 miles per hour C. 31⁄2 miles
Pani-rosa [81]

Answer:

C. 3 1/2 miles per hour

Step-by-step explanation:

I just converted the fractions to decimal form.

5/8 = 0.625           9 + 0.625   = 9.625

3/4 = 0.75             2 + 0.75     = 2.75

Now divide the 2 numbers:

9.625 / 2.75 = 3.5

Finally, convert the decimal back to a fraction:

3.5 = 3 1/2

Hope this helps!


6 0
3 years ago
Read 2 more answers
Find the area of a regular octagon with
sattari [20]

Answer:

482.8 cm

Step-by-step explanation:

A=2(1+sqrt2)a^2=2·(1+squrt2)·10^2=482.84271

4 0
2 years ago
Is the data set 3,3,3,4,4,5,25 skewed right skewed left or normally distributed?
OverLord2011 [107]
It is skewed to the right because 25 is the outlier.
3 0
3 years ago
Is this a function? Easy points
Marrrta [24]
Wanna learn how to make Mac and cheese
For thanks giving

Boil the pasta, drain.
Make the cheese sauce by combining a fat (butter), and starch (flour), then whisking in the milk products.
Cook the sauce until it’s nice and thick.
Add in shredded cheeses, stir well.
Combine cheese sauce with cooked pasta.
Transfer half of the mac and cheese to a baking dish, sprinkle with more shredded cheese.
Top with the rest of the mac and cheese, top with more shredded cheese.
Bake and prepare to thoroughly enjoy
3 0
2 years ago
Read 2 more answers
Other questions:
  • A company needs to replace 27 out of 45 desks in their office. What percent of the desks need to be replaced?
    5·2 answers
  • What value of a makes the equation true? 1.7a+0.3a=4/5 A) a=2/5 B) a=−1 1/5 C) a=2 4/5 D) a=1 3/5
    14·2 answers
  • Jessica completed 21 math problems in 14 minutes. At this rate, how many math problems could she complete in 30 minutes?
    9·1 answer
  • There are seven cats in my neighborhood, with an average of $41$ whiskers each. If one of the cats has $17$ whiskers, how many w
    11·1 answer
  • What two parts of a regular polygon are congruent?
    9·1 answer
  • GIVEAWAY TO GET 100 POINTS + BRIANLIEST IF YOU ANSWER WHATS 9+10 B)
    13·2 answers
  • Given f(x) = log x and g(x) = -x + 1,<br> which is the graph of (fºg)(x)?
    7·1 answer
  • I don’t know this question? Can you pls answer it...
    14·1 answer
  • Please help<br><br> Why is this not an equilateral triangle?
    11·1 answer
  • A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. Write a formula expressing
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!