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
what are the explicit equation and domain for a geometric sequence with a first term of 5 and a second term of -10
OleMash [197]
a_1=5;\ a_2=-10;\ r=a_2:a_2\to r=-10:5=-2\\\\a_n=a_1r^{n-1}\\\\\boxed{a_n=5\cdot(-2)^{n-1}}
6 0
2 years ago
Read 2 more answers
Find two decimals that are equivalent to
mafiozo [28]

Answer:

(4*10)+(7*1/100)=40+7/100=40 7/100

Step-by-step explanation:

5 0
3 years ago
Lena's engagement ring has a radius of 9 millimeters. What is the ring's circumference? Use 3.14 for ​
scoray [572]

Answer:

Given - Radius of ring is 9 millimeters

To find - Circumference

Solution -

9 millimeters = 0.9 centimeters

Circumference of circle = 2 × pie × r

= 2 × 3.14 × 0.9

= 6.28 × 0.9

= 5.652

4 0
3 years ago
Consider the reflection of parallelogram PQRS across the line of reflection wy
solniwko [45]

Answer:

Consider the reflection of the parallelogram PQRS across the line of reflection wy if RR = 14 Then RZ= If SX=5 then = 5

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP. IF YOU DONT KNOW ONE BUT KNOW the otHERS THATS VERY HELPFUL TOO!!!
vredina [299]

Answer:

idk im stuck too

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • For each store what is the ratio of cans to price
    11·1 answer
  • 301sec equal to how many min<br> Let’s see if you can do this
    7·2 answers
  • The time it takes Jessica to bicycle to school is normally distributed with mean 15 minutes and variance 4. Jessica has to be at
    6·1 answer
  • If (1)=0, what are all the roots of the function f(x)=x3+3x2-x-3?use the remainder theorem
    11·1 answer
  • Is there anyone who can do my homework for me Its 30 questions
    8·1 answer
  • PLEASE HELP ASAP! BRAINLIEST! Find the missing variables of the triangles!
    10·1 answer
  • Helppp, 60 points!!!
    9·2 answers
  • A man earns 5000 for 10 days work.how should he earn in 14,if working at the same rate
    8·2 answers
  • Plz hurry i will mark brainliest if you are right :))))
    6·1 answer
  • Solve the following. 1. A number added to 2 is - 3. Find the number. ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!