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
lawyer [7]
2 years ago
15

A jar contains only dimes and nickels. The total number of coins in the jar is

Mathematics
1 answer:
pogonyaev2 years ago
4 0

Answer:

5 dimes and 10 nickels

Step-by-step explanation:

0.1d + 0.05n = 1

d + n = 15

d + 0.5n = 10

d + n = 15

0.5n = 5

n = 10

d + n = 15

d + 10 = 15

d = 5

Answer: 5 dimes and 10 nickels

You might be interested in
F(x) = x2. What is g(x)?
bixtya [17]
The answer for this equation is A
8 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Kitty [74]

Answer:   (-2, 5) and (2, -3)

<u>Step-by-step explanation:</u>

Graph the line y = -2x + 1 (which is in y = mx + b format) by plotting the y-intercept (b = 1) on the y-axis and then using the slope (m = -2) to plot the second point by going down 2 and right 1 unit from the first point:

        y - intercept = (0, 1)            2nd point = ( -1, 1).

Graph the parabola y = x² - 2x - 3 by first plotting the vertex and then plotting the y-intercept (or some other point):

y = x^2-2x-3\quad \rightarrow \quad a=1,\ b=-2,\ c=-3\\\\\text{axis of symmetry:}\ x = \dfrac{-b}{2a}\ \longrightarrow \ x=\dfrac{-(-2)}{2(1)}=\dfrac{2}{2}=1\\\\\text{y-value of vertex:}\ f(1) = (1)^2-2(1)-3\quad \longrightarrow \quad y = 1 - 2 - 3=-4\\\\\text{y-intercept:}\ f(0)= (0)^2-2(0)-3\ \longrightarrow \ y=0 - 0 - 3 = -3 \\

         vertex = (1, -4)                2nd point (y-intercept) = (0, -3)


<em>see attached</em> - the graphs intersect at two points:  (-2, 5) and (2, -3)


8 0
3 years ago
What is the equation of the following line? Be sure to scroll down first to see all answer options.
Yuri [45]

Answer:

D: y=6x

Step-by-step explanation:

y=mx+b

b=0

y=mx

-3=m * (-1/2)

m=6

y=6x

3 0
3 years ago
Please help me by marking the correct answer to each part of number 9. I really dont get this at all, so please tell me why your
natta225 [31]
A. False
Why? Because you cut off the triangle. The measurements are 20 mm and 10 mm.
B. True
Why? Because 20*10 = 200
C. False
Why? Because the base is 6 since 26 - 20 is 6. The height is 4, not 6 because 10 - 6 is 4.
D. True
Why? Because like question C., the base is 6, and the height is 4. 6*4 is 24/2 = 12. If you don't get this, the formula for all triangles is b*h*1/2
E. True
Why? Because from questions B. and D., the area of the rectangle is 200 and the area of the triangle is 12. 200 + 12 = 210.

Hope this helped,
Loafly
3 0
3 years ago
Equity Refers to:
Gnoma [55]

Answer:

ownership in a company

Step-by-step explanation:

the answer is option B

8 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!!
    10·1 answer
  • 5. Myra has been at her job for 3 months. She earns $2,500 per month. She has made 1 late payments on her student loan and 1 lat
    12·1 answer
  • Solve the exponential equation<br> 16 = 2^x − 2.
    6·2 answers
  • Simplify 2/√5
    14·1 answer
  • On a Saturday the ratio of the amount of water used by Household A to the amount of water used by Household B was 13:5.Household
    9·1 answer
  • During a thunderstorm​ yesterday, 600 millimeters of rain fell in 30 minutes. What is the unit rate for millimeters per​ minute?
    10·2 answers
  • Help me answer this question
    10·1 answer
  • What is the best name of the solid that can be formed by this net? rectangular pyramid rectangular prism triangular prism tetrah
    6·2 answers
  • A cylinder has a height of 8.1 inches and circular base with a diameter of 2.7 inches. The cylinder contains 3 green spheres, ea
    12·1 answer
  • Pls help me i am afraid to fail the test<br> f.1/4<br> g.4<br> h.1<br> j.60
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!