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Ad libitum [116K]
3 years ago
15

Jazmyn is baking and selling cupcakes for $15 per dozen. She would like to make more than $120 in cupcake sales. Which number li

ne below represents the solution to the situation?
Mathematics
1 answer:
baherus [9]3 years ago
4 0

Answer:

> 8

Kindly find number line in attacked picture

Step-by-step explanation:

Price of cupcake per dozen = $15

Projected amount of sales > $120

In other to make such amount in sale, we need to obtain the number of dozens of cupcake :

Project amount of sales / price per dozen

> $120 / $15

> 8 dozens

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3 years ago
Can someone help me???
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
Rob collects data about how many customers enter and leave a store every hour. He records a positive number for customers enteri
makkiz [27]
To answer the question, we utilize the given data and solve for the number of customers left in the store after every 1 hour interval.

Initially, there were 75 customers.

1:00 to 2:00 :        75 + 30 - 12 = 93
2:00 to 3:00   :      93 + 14 - 8   = 99
3:00 to 4:00   :      99 + 18 - 30 = 87
4:00 to 5:00   :  If the store does not accept any more customers except those who are already inside then, all 87 must leave between 4:00 to 5:00 in order to empty out the store by 5:00

ANSWER: (a) 4:00 to 5:00
                 (b) 87 customers
7 0
3 years ago
A kennel has 80 dogs in total dogs in total, some are puppies and some are adult dogs. The ratio of puppies to adult dogs in a k
aleksklad [387]
The ratio given says this - 3 puppies : 2 adults = 5 total dogs
You are given (?) puppies : (?) adults = 80 total dogs
In this case, you are trying to find the number of puppies, so you do not need to care about the number of adults. You need to compare the ratio with the actual amount.
Total/puppies = total/puppies
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Now, cross multiply. 
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8 0
3 years ago
Answer as many as possible please need work for brainilist
zysi [14]

Answer:

1. 18x + 35y = 598

  x + y = 20

  Isolate a variable in the second equation:

  y = -x + 20

  Plug y back into the first equation

  18x + 35(-x + 20) = 598

  18x - 35x + 700 = 598

  -17x +700 = 598

  -17x = -102

   x = 6

   <u>You carpool 6 days of the 20</u>

   6 + y = 20

   y = 14

   <u>You ride the bus 14 days of the 20</u>

2.   4.50n + 3p = 252

     p = 2n

     Substitute p into the first equation

     4.50n + 3(2n) = 252

     4.50n + 6n = 252

      10.5n = 252

      n = 24

      <u>They sold 24 cans of nuts</u>

      p = 2(24)

      p = 48

      <u>They sold 48 boxes of popcorn</u>

      <u>The group sold, in total, 24 + 48 = 72 cans of nuts and boxes of popcorn. </u>

3.  x - y = 3

    x + y = 8

    Isolate a variable

    x = y + 3

    (y + 3) + y = 8

    2y + 3 = 8

    2y = 5

    y = 2.5

    <u>The average speed with wind is 2.5 mph</u>

    x - 2.5 = 3

    x = 5.5

    <u>The average speed without wind is 5.5mph </u>

4. x + 8y = 22.8

   x + 6y = 18.6

   Isolate

   x = -8y + 22.8

   Substitute

   (-8y + 22.8) + 6y = 18.6

   -2y + 22.8 = 18.6

   -2y = -4.2

   y = -2.1

   <u>The gas costs $2.10 per gallon</u>

    x + 8(2.1) = 22.8

    x + 16.8 = 22.8

    x = 6

    <u>The cost of the car was is $6. </u>

5.  Cost = 9.99 + 2.49x

    Cost = 20.49 + 1.79x    

    To find which one is better, we need to set them equal to each other at first.

    9.99 + 2.49x = 20.49 + 1.79x

    9.99 + 0.70x = 20.49

    0.70x = 10.5

    x = 15

So, they cost the same at 15 rentals.

To find which one is the better deal let's see how much both cost after 16 rentals.

     Cost = 9.99 + 2.49(16)

              = 49.83

     Cost = 20.49 + 1.79(16)

              = 49.13

<u>Therefore, Main Street is the better deal because after the equilibrium Main Street costs less than Big Video. </u>

6.  x + y = 15

    .25x + .05y = 2.75

    Isolate

    x = -y + 15

    Solve

    .25(-y + 15) + .05y = 2.75

    -.25y + 3.75 + .05y = 2.75

    -0.2y + 3.75 = 2.75

    -0.2y = -1

    y = 5

    <u>There are 5 nickels</u>

     x + 5 = 15

     x = 10

     <u>There are 10 quarters</u>

7. x + y = 26

   x + .25y = 17

   Isolate

   x = -y + 26

   Substitute

   (-y + 26) + .25y = 17

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   -0.75y = -9

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   <u>There are 12 quarters in his pocket</u>

   x + 12 = 26

   x = 14

   <u>There are 14 dollars </u>

<em>I hope this helps!!</em>

<em>- Kay :)</em>

6 0
3 years ago
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