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
Nat2105 [25]
3 years ago
14

Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she

had 38 coins all of them dimes and quarters. When she added them up she had a total of $6.95
Mathematics
2 answers:
vovangra [49]3 years ago
8 0

Answer:

She had 17 dims and 21 quarters to make $6.95.

Step-by-step explanation:

Given : Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she had 38 coins all of them dimes and quarters.

To find : When she added them up she had a total of $6.95?

Solution :

Let d be the dims and q be the quarters.

She had 38 coins.

i.e. d+q=38 ......(1)

The value of d is 0.10 and q is 0.25.

The total she had of $6.95

i.e. 0.10d+0.25q=6.95  .......(2)

Solving (1) and (2),

Substitute d from (1) into (2)

0.10(38-q)+0.25q=6.95

0.10\times 38-0.10q+0.25q=6.95

3.8+0.15q=6.95

0.15q=6.95-3.8

0.15q=3.15

q=\frac{3.15}{0.15}

q=21

Substitute in equation (1),

d+21=38

d=38-21

d=17

Therefore, She had 17 dims and 21 quarters to make $6.95.

lisov135 [29]3 years ago
7 0

d = dimes

q = quarters

d+q = 38 coins

q=38-d

0.25q + 0.10d=6.95

0.25(38-d)+0.10d=6.95

9.5-0.25d+0.10d=6.95

-015d=-2.55

d=-2.55/-0.15 = 17

q=38-17 =21

21*0.25 =5.25

17*0.10 = 1.70

5.25+1.70 = 6.95

 she had 21 quarters and 17 dimes

You might be interested in
4. Paula drew a map of her neighborhood on a coordinate grid. A grocery store is located at point (5,-4). A park is located at p
Paha777 [63]

Answer:

Midpoint Formula= (x1+x2)/2, (y1+y2)/2

Plug in the numbers

Answer= (0, 0)

I hope this helps you!!

6 0
2 years ago
A circle's radius is 25 inches.
Stella [2.4K]

Answer:

C≈157.08in

Step-by-step explanation:

C=2πr=2·π·25≈157.07963in

5 0
3 years ago
Read 2 more answers
The area of a room in a dollhouse is 1,248 square inches. The width of the room is 8 inches. How long is the room?
AveGali [126]
The length of the dollhouse is 156 square inches
6 0
3 years ago
Convert the distance 403 miles to kilometers
Elden [556K]

648.566 Km is the answer. :)

8 0
3 years ago
???whats the answers
Aleks04 [339]
11, 3, -3, -12
Hope this helps :)
3 0
3 years ago
Other questions:
  • 2) Write an integer to best describe<br> the following situation: 6 feet below<br> sea level
    9·1 answer
  • Eli left his house one afternoon to study at the library
    10·1 answer
  • What is 5/8 divided by 20
    11·2 answers
  • Use the percent proportion to solve for X. 16 is 32% of x. Find the value of 1.​
    8·1 answer
  • 36 gallons in 12 minutes
    10·2 answers
  • Simplify.<br> (3.8w+ 4) – 1.5w+8<br> 2.3 w+ 12<br> 5.3 w+ 12<br> 2.3 w-12<br> 5.3 w-12
    13·2 answers
  • The total operating cost for the truck is $400 000 per year. The percentage breakdown of this total amount was: 40%: Fixed costs
    6·1 answer
  • Alecia builds a box in the shape of a cube with an open top. She plans to paint the box. Alecia calculates that there are 256 sq
    7·2 answers
  • Help plss thank you -
    11·2 answers
  • #1: Find the value of X. (GEOMETRY)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!