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
aleksandrvk [35]
2 years ago
5

Suppose you have 57 coins in a jar consisting entirely of dimes and quarters, worth a total of $10.65. How many dimes are in the

jar?
Mathematics
1 answer:
RUDIKE [14]2 years ago
7 0

Answer:

  24

Step-by-step explanation:

Let d represent the number of dimes. Then (57-d) is the number of quarters, and the total value (in cents) is ...

  10d +25(57 -d) = 1065

  -15d +1425 = 1065 . . . . . . simplify

  -15d = -360 . . . . . . . . . . subtract 1425

  d = -360/-15 = 24 . . . divide by the coefficient of d

There are 24 dimes in the jar.

You might be interested in
Tina wants to build a garden in her backyard. She knows that the area of the section of the backyard she will be using is x^2-4x
Step2247 [10]
The area (A) of a rectangle is calculated by multiplying the length (L) and the width (W). In order for us to determine the possible dimensions of the section (or sides) of the rectangle, we have to factor the given area.
                                          x² - 4x - 45
                                       (x - 9)(x + 5)

<em>Thus, the possible dimensions of the rectangle are x-9 and x+5</em>. 
3 0
3 years ago
Evaluate the expression w² - v + 1 for w = -2 and v = -8.
kaheart [24]

Answer:

13

Step-by-step explanation:

-2(-2) - (-8) + 1

4 + 8 + 1 = 13

7 0
3 years ago
Read 2 more answers
The perimeter of UVW is 22 2/1. And VZ = 2 1/2. Find UW and VW.
Cerrena [4.2K]
UW and VW are the same so 9
22.5-4.5= 18 then divide the 18 by 2 so 9
4 0
3 years ago
Read 2 more answers
Kelvin divides 3 pieces of paper into fourths. how many fourths does he have​
-Dominant- [34]

Answer:

12

Step-by-step explanation:

3 x 4 = 12

5 0
3 years ago
Eight friends share two pizzas equally. How much of a pizza does each friend get?
My name is Ann [436]
2/8.

You take two pizzas and divide them by 8.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Need help quick ..?????brainliest answer
    8·2 answers
  • What is the total amount that First Consumer Bank will receive after lending Jane $7,000 for three years at an interest rate of
    6·1 answer
  • Sandy is Working with a carpenter to frame a house. They are using 8 foot long boards, but each board must be cut to be 7 feet,
    13·2 answers
  • 10 POINTS AND BRAINIEST TO FIRST CORRECT ANSWER!!! find angle 2.
    14·2 answers
  • Find the length of the arc intercepted by an angle of 36° in a circle with radius 12 inches
    14·1 answer
  • Curtis divided 27.16 by 2.8 in Got 0.97 is his answer reasonable why or why not
    9·1 answer
  • A stop sign is an octagon with each side measuring 32 cm. what is the perimeter of the sign?​
    5·2 answers
  • Find an expression that is equivalent to this expression:
    11·1 answer
  • A biologist observed that a certain bacterial colony obeys the population growth law and that the colony triples every 4 hours.
    6·1 answer
  • Please help, help needed
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!