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
Harlamova29_29 [7]
4 years ago
8

Kevin and Randy Muise have a jar containing 91 coins, all of which are either quarters or nickels. The total value of the coins

in the jar is $14.55. How many of each type of coin do they have?
Mathematics
1 answer:
BartSMP [9]4 years ago
5 0
Q + n = 91
q +n -n =91-n
q= 91-n

.25q +.05n = $14.55
.25(91-n)+.05n = $14.55
22.75-.25n+ .05n= $14.55
22.75 -.20n =14.55
22.75-22.75-.20n=14.55-22.75
-.20n=-8.2
-.20n/-.20n= -8.2/-.20n
n= 41

q + 41 = 91
q +41 -41 = 91-41
q = 50

CHECK
.25(50) + 0.05(41) = $14.55
12.50 + 2.05 = $14.55
$14.55 = $14.55


You might be interested in
An electrician needs 18.25 feet of wire for each outlet she installs. How man can she install with a 50 ft spool of wire?
jolli1 [7]

Answer:

2

Step-by-step explanation:

Ok, so if we know how much wire is needed for one outlet, we must figure out how many 18.25s fit into 50 ft of wire.

18.25*2=36.5

18.25*3=54.75 which is over 50 so it cannot possibly be more than 2.

3 0
3 years ago
Read 2 more answers
I need answer ASAP I’m next 10 mins
34kurt

Answer:

B

Step-by-step explanation:

First simplify the first term to get

10y^4

then multiply 10y^4 by 4 square root 6y^3

40y would be all you needed to get answer

6 0
3 years ago
Read 2 more answers
Edward's cake recipe calls for 15 3/4 cups of flour and
rodikova [14]
Cups of flour=15  3/4=15+ 3/4=(4*15+3)/4=63/4
Cups of sugar=10  1/2=(2*10+1)/2=21/2

We solve this problem by rule of 3:

63/4 cups of flour--------------100 people
x------------------------------------ 25 people

x=(63/4 cups of flout * 25 people)/100 people=1575/400 cups of  flour=
=63/16=(3*16+15)/16=3  15/16  cups of flour.

21/2 cups of sugar-----------------100 people
x-----------------------------------------25 people

x=(21/2 cups fo sugar * 25 people) / 100 people=525/200 cups of sugar= 21/8 =(2*8+ 5)/8=2   5/8 cups of sugar.

Answer:  3  15/16  cups of flour and 2  5/8 cups of sugar.
8 0
3 years ago
What is the missing number in the expression 3(q+7)=27
Murljashka [212]

Answer:

2

Step-by-step explanation:7+2 is 9 and 9x3 is 27

3 0
3 years ago
Nina knows that the average of the x-intercepts represents the line of symmetry for a quadratic function through the x-axis. Whi
USPshnik [31]
I don't know for sure I'm going to ace grade next year but I know that you you need to put the coefficients with the same variable together and the variable next to the coefficients and multiply or add or divide or subtract them and you get your answer and this is just 7th grade math I'm relying on
4 0
3 years ago
Read 2 more answers
Other questions:
  • Pls show ur work and do the pink questions
    11·1 answer
  • Eight and one third times four fifteenths
    9·1 answer
  • The Campbells went out to dinner at Chilli's. They spend $64.00 and want to leave a 20% tip. How much did they tip their server?
    15·1 answer
  • Sumeet is building two types of birdhouses. The more traditional type takes 4 pieces of wood and 2 hours to build. The more lavi
    6·1 answer
  • Please help meeee mmmm
    14·1 answer
  • Which number has a cube root between 7 and 8
    5·2 answers
  • The lengths of the sides of a square are 5 cm. find the length of the diagonal
    15·1 answer
  • Which of the following is not closed under the operation being performed ?
    7·1 answer
  • The diameter of a circle is 8 cm. What is the area of the circle? Use 3.14 for pi
    10·1 answer
  • Latoya plans to watch 2 movies each month. Write an equation to represent the total number of movies n that she will watch in m
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!