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
Ber [7]
3 years ago
9

Sally has twice as many dimes as nickels. The total value is $3.50 how many nickels and dimes does she have?

Mathematics
2 answers:
leonid [27]3 years ago
5 0
2n=d
nickel is 0,05 dollars     dime is 0.1 dollars
0.05(n)+0.1(2n)=3.5
0.25n=3.5
n=14
d=2(14)=28
hope u can understand
Murljashka [212]3 years ago
3 0
D=2n
.05n+.1d=3.5
I multiplied the nickels and dimes by these values because that is their actual monetary value 
.05n=3.5-.1d
multiply everything by 20
n=70-2d
d/2=70-2d
.5d+2d=70 
2.5d=70
d=28 
n=14 
so there are <u>28 dimes and 14 nickels 
</u>
checking this answer 
28 dimes = $2.8
14 nickels = .70
2.8+.7=3.5

You might be interested in
Solve: 2^x-2^(x-2)=6
malfutka [58]
X=3! Hope this helps (:
5 0
3 years ago
Read 2 more answers
Choose a situation that could be described by the following ratios, and write a sentence to describe the ratio in the context of
a_sh-v [17]
Part A:

Given the ratio 1 : 2, we can describe this ratio with the following situation.

The number of green balls to orange balls in the bag is in the ratio of 1 : 2. For every green ball in the bag, there are 2 corresponding orange ball.


Part B:

Given the ratio 29 : 30, we can describe this ratio with the following situation.

The ratio of the amount of sugar used to the amount of salt used to prepare the sugar-salt solution is 29 : 30. For every teaspoons of sugar used in the solution, 30 teaspoons of salt needs to be used.


Part C:

Given the ratio 52 : 12, we can describe this ratio with the following situation.

The number of kilometers travelled by the car and the bicycle is in the ratio of 52 : 12. For every 52 kilometers travelled by the car, the bicycle travelled 12 kilometers.
4 0
2 years ago
if the cost of the wallpaper was $771.12 , what was the cost , in dollar , of the wallpaper per square foot​
Stella [2.4K]

Answer:

$0.72

Step-by-step explanation:

:)

7 0
3 years ago
5g−2≤ 3g+8 3g+8<br><br> it says to solve for g.
Bess [88]

Answer:g is greater than or equal to 6g + 18/5, or g >_ 6g + 18/5

Step-by-step explanation: 5G- 2 <_ 6g + 16

Add 2 to the 16. 5g <_ 6g + 18.

Divide 5 to both sides. g >_ 6g + 18/5

7 0
2 years ago
What is the equivalent fraction for 5/6 3/8
Serga [27]
5/6 is equal to 10/12 and 3/8 is equivalent to 6/16
3 0
3 years ago
Other questions:
  • What percent of 10 is 6?
    9·1 answer
  • About 15​% of the population of a large country is allergic to pollenallergic to pollen. if two people are randomly​ selected, w
    10·2 answers
  • 5+5orienwjiwinwjeuejnsjsineneje​
    12·1 answer
  • ..............................................
    13·1 answer
  • a room has an area of 121 ft2 but carpeting is only sold in m2.how much carpeting is needed to carpet the room
    14·1 answer
  • 0.00045 in standard form
    6·2 answers
  • Twice the difference of a number and three is negative two. Find the number
    6·1 answer
  • 36 is _______% less than 60?
    15·2 answers
  • A regular hexagon is rotated in a counterclockwise direction about its center. Determine and state the minimum number of degrees
    13·1 answer
  • PLEASE HELP<br> Which is the function represented by the table?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!