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Nitella [24]
3 years ago
13

Equivalent expression for 18x and 9y

Mathematics
1 answer:
alukav5142 [94]3 years ago
4 0
18x+9y
9x+y
x+1/9y
2x+4.5y
x+2.25y
You might be interested in
A theater contains 460 seats and the ticket prices for a recent play were $52 for adults and $26 for children. If the total proc
Vlada [557]

Answer:

The answer to your question is There were sold 166 adult tickets and 294

                                                     children tickets.

Step-by-step explanation:

Data

Total number of seats = 460

cost for adults = a = $52

cost for children = c = $26

Total cost = $16276

Process

1.- Write equations to solve this problem

              a + c = 460                    Equation l

         52a + 26c = 16276             Equation ll

2.- Solve the system of equation by substitution.

-Solve equation l for a

             a = 460 - c

-Substitute a in equation ll

         52(460 - c) + 26c = 16276

-Expand

         23920 - 52c + 26c = 16276

-Simplify

                     -26c = 16276 - 23920

                     -26c = -7644

                          c= -7644/-26

                          c = 294

3.- Find a

                        a = 460 - 294

                        a = 166

8 0
3 years ago
Read 2 more answers
a cashier at the supermarket has $685 in 4 different denomination bills in her register at the end of the day. the number of $5
netineya [11]

9514 1404 393

Answer:

  • 85 ones
  • 70 fives
  • 15 tens
  • 2 fifties

Step-by-step explanation:

Let a, b, c, d represent the numbers of $1, $5, $10, and $50 bills, respectively. The problem statement tells us ...

  a +5b +10c +50d = 685 . . . . . total amount of cash

  b = 10 +4c . . . . . . . . . . . . the number of fives is 10 more than 4 times tens

  a = b+c . . . . . . . . . . . as many ones as fives and tens combined

  d = 2 . . . . . . . . . . the register contained 2 fifty-dollar bills

__

Substituting for 'a', then for 'b', we have ...

  (b+c) +5b +10c +50d = 685

  6(10 +4c) +11c +50d = 685

  60 +35c +50d = 685

Substituting d=2 and subtracting 160 gives ...

  35c = 525

  c = 15

  b = 10 +4c = 10 +4(15) = 70

  a = b+c = 70 +15 = 85

The register contained ...

  • 85 ones
  • 70 fives
  • 15 tens
  • 2 fifties
5 0
2 years ago
Read 2 more answers
Kim ate 3/10 of a bag of chips, sandy ate 3/7 of a bag, and jeff ate 3/9 of a bag. who ate the most
aksik [14]

Answer:

sandy

Step-by-step explanation:

3/10 = .3

3/7=.43

3/9=.333333

sandy then jeff then kim

6 0
3 years ago
Read 2 more answers
Three dozen eggs cost $18.00, How much would one egg cost?
Assoli18 [71]

Answer:

SUPER SORRY IF THIS IS WRONG

I believe one egg would cost $2

Step-by-step explanation:

Three dozen eggs is 36 eggs, then 36 divided by 18 is 2. So one egg would be $2.

Again really sorry if I am wrong.

8 0
3 years ago
Read 2 more answers
What is the equivalent form of (x-2)2 -5x +3?
slega [8]

Answer: -3x-1

Step-by-step explanation: 2x-4-5x+3 collect the terms

                                            -3x-4+3

                                        answer -3x-1

6 0
3 years ago
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