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
goldenfox [79]
3 years ago
15

Every evening jenna empties her pockets and puts the change in a jar at the end of the week she had 38 coins all of them dimes a

nd quarters when she added them up she had a totals of $6.95
Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0
I imagine the part you left out was "how many of each coin did she have?".  I'm going with that.  The thing is you have to relate the NUMBER of coins to each other, which is very different from the VALUE of the coins.  I could have 1 single quarter, but it's worth 25 cents.  Number vs. value.  If she had 38 coins made up of dimes and quarters, then d + q = 38.  That's the number of dimes and quarters, both still unknown.  A dime is worth .10 and a quarter is .25.  Therefore, .10d + .25q = 6.95.  That's the value of the coins.  Solve the first equation for dimes.  d = 38 - q.  Now we can sub in that value of d into the second equation, so we have only one unknown instead of 2.  .10(38-q)+.25q=6.95.  Distribute through the parenthesis to get 3.8-.1q+.25q=6.95.  Combine all the like terms on both sides to get.15q=3.15.  Solve for q and get that q = 21.  So we have 21 quarters.  38-21 = # of dimes, which is 17.  There you go!  Hope that's what you actually needed!  ;)
dedylja [7]3 years ago
7 0
A) d + q = 38
B)  .1d +.25q = 6.95
Multiply A) by -.1
A) -.1d + -.1q = -3.8The adding B)B)  .1d +.25q = 6.95
.15q = 3.15
21 quarters17 dime
Double-Check********************************************************
17 * .10 + 21 * .25 = 
1.70 + 5.25 = 
6.95

You might be interested in
A fish tank has a length of 14cm, a width of 25cm, and a height of 15cm. It is only filled with water up to a height of 7 centim
bazaltina [42]

Answer:

2800 cm^3, or 2.8 liters

Step-by-step explanation:

The base of the tank remains 14 cm × 25 cm. The remaining height is 15 -7 = 8 cm, so the remaining volume is ...

(14 cm)(25 cm)(8 cm) = 2800 cm^3 = 2.8 liters

_____

1 liter = 1000 cm^3

4 0
3 years ago
Ayuda pls :) I love u in advance
GREYUIT [131]

Answer:

I can't be quite specific without no protractor, but I will say it could be in-between 40 degrees and 20 degrees.

Step-by-step explanation: Hope this helps and brainliest if possible!

7 0
3 years ago
Solve the problem 3g+7g+8=-10+g
Vinil7 [7]
First simplify like terms (things with the same letter):

3g + 7g + 8 = -10 + g

10g + 8 = -10 + g

Next we should take g off both sides:

9g + 8 = -10

Next isolate 9g by taking 8 off both sides:

9g = -18

Next divide both sides by 9 to find the value of g:

g = -2
3 0
3 years ago
6 mm
Akimi4 [234]
The answer is 20 ashsnenzhwnebdhdjsjdn
7 0
3 years ago
Write this number in word form 3,388,198
Minchanka [31]

Three million three hundred eighty eight  thousand one hundred ninety eight.

4 0
2 years ago
Read 2 more answers
Other questions:
  • While walking outside on a field trip 75%,or 15 of the students in the class wore jackets Find the number of students in the ent
    5·2 answers
  • Find the ordered pairs for the x- and y-intercepts of the equation 2x-6y=24 and select the appropriate option below.
    12·1 answer
  • Imagine a 10 kg chunk of aluminum (density = 2.7 g/cm3) and a 10 g chunk of iron (density = 7.9 g/cm3).
    10·2 answers
  • A pair of corresponding sides of two similar pentagons have length of 16 cm and 28 cm. what is the ratio of the areas of two pen
    5·1 answer
  • According to the 2000 U.S. Census Bureau, 49.65% of Texas residents were male. If one Texan was selected at random in 2000, what
    6·1 answer
  • What are the measures of the two angles in the figure below?
    7·1 answer
  • F(x)=6x+5 and g(x)=2x-4
    6·1 answer
  • A total of 629 tickets were sold for the school play. They were either adult tickets or student tickets. There were 71 fewer stu
    14·1 answer
  • (2 + 9s)(2) this is for ixl R 12
    14·2 answers
  • Find the value of x, if C is on line AE
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!