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
Zigmanuir [339]
3 years ago
8

) Jess has saved dimes ($ 0.10) and quarters ($ 0.25) in their piggy bank. Define the variables and write a

Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0

Answer:

Quarters = 10

Dimes = 15

Step-by-step explanation:

d = number of dimes, q = number of quarters

d + q = 25 is the equation for number of coins

0.1d + 0.25q = 4 is the equation for value of coins

First, solve for d in terms of q:

d + q = 25

d = 25 - q

Then substitute that into the other equation:

0.1(25 - q) + 0.25q = 4

2.5 - 0.1q + 0.25q = 4

0.15q = 1.5

q = 10

And back to d = 25 - q, d = 25 - 10 = 15

Check the math:

0.1(15) + 10(0.25) = 1.5 + 2.5 = 4

LMK if you have questions

You might be interested in
Round to the nearest ones place for the problem as follows......3.9
WINSTONCH [101]
I believe it would be 4.
5 0
3 years ago
Read 2 more answers
Lucy is knitting a blanket and needs to buy some more yarn. At her local craft store, 2 skeins of yarn cost 57 and 8 skeins of y
prisoha [69]

Answer: it’s A 7/2 i just took this

Step-by-step explanation:

5 0
2 years ago
What is a domain? <br> What is a range?
lidiya [134]

Answer:

he domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes.

Step-by-step explanation:

:)

5 0
3 years ago
Solve for G<br><br> •1.00<br> •36.03<br> •90<br> •43.34<br> •46.66<br> •7.55
g100num [7]

Answer:42.98

Step-by-step explanation:

Hf=√(11^2-8^2)

Hf=√(121-64)

Hf=√(57)

Hf=7.5

11/sin90 =7.5/sinG

Sin90=1

11/1=7.5/sinG

Cross multiply

11 x sinG=7.5 x 1

11sinG=7.5

Divide both sides by 11

11sinG/11=7.5/11

sinG=0.6818

G=sin(inverse)(0.6818)

G=42.98

6 0
3 years ago
X + 2(y-6) = 0
Karo-lina-s [1.5K]
2x - z = 4
6x - 5z = 18
3z - 2w = -18
If u want me to solve them it’s
1. X = -2y + 12
2. x = 10 - 4/3y | for y, y = 15/2 - 3/4x
3. x = 2+ 1/2z | for z , z = -4 + 2x
4. x = 3 + 5/6z | for z , z = - 18/5 + 6/5x
5. W = -3/2x + 13/2 | for x , x = -2/3w + 13/3
6. x = -5w + 13 | w = -1/5x + 13/5
5 0
2 years ago
Other questions:
  • Definition of the identity property of addition and the commutative property of addition
    8·2 answers
  • What is 66%as a fraction in simplest form
    7·2 answers
  • Look at the triangle: A right angle triangle is shown with hypotenuse equal to 10 centimeters. An acute angle of the triangle is
    15·1 answer
  • A grocery cart contains eggs for 89¢, bread for 95¢, fruit for $1.79, meat for $2.89, and vegetables for $1.29. What is the tota
    12·1 answer
  • 20 is what percent of 62?
    8·1 answer
  • -7 2/3 + (-5 1/ ) +8 3/4
    9·1 answer
  • Find the slope of the line. Write your answer in simplest form.
    6·1 answer
  • If a window is to be 6 feet wide, how high should it be, to the nearest tenth of a foot, to be a golden rectangle
    12·1 answer
  • The vertices of a triangle are J(−3,2), K(1,1), and L(−1,−7). Find the slopes of the lines connecting the vertices. Then determi
    6·1 answer
  • What is the median of the data set?<br><br> 10, 15, 27, 33, 33, 36, 42, 47, 45, 56, 78
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!