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denis-greek [22]
3 years ago
7

Maria is comparing the prices of two window cleaning companies. Company A charges $6 per window and an additional $12 as service

charges. Company B charges $5 per window and an additional $15 as service charges.
Part A: Write equations to represent Company A's and Company B's total charges for cleaning a certain number of windows. Define the variable used in the equations. (4 points)

Part B: Which company would charge less for cleaning 8 windows? Justify your answer. (3 points)

Part C: How much money is saved by using the services of Company B instead of Company A to clean 6 windows? (3 points)
Mathematics
1 answer:
bija089 [108]3 years ago
4 0
Part A
y=6x+12
y=5x+15
x is the amount of windows, y is the total amount of money 
Part B
y=6(8)+12       =60
y=5(8)+15      =52
Company B 
Part C
y=6(6)+12       =48
y=5(6)+12       =42
$6 is saved 
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Galen sold tickets for his church’s carnival for a total of $2,820. Children’s tickets cost $3 each and adult tickets cost $5 ea
Veronika [31]

Answer:

a = 195 ; c = 615

Step-by-step explanation:

So, you want to start by forming your equations...

I will use 'c' for children and 'a' for adults for my variables

3a + 30 = c  

(this is because of the info that 30 more tickets than 3 times the amount of children's were sold than adult)

then for equation 2:

3c + 5a = 2820

(this is because of the prices of the tickets and the total money raised)

Then, plug in the equation for c

Your equation should look like:

3(3a + 30) + 5a = 2820

You get:

(9a +90) + 5a = 2820

Then:

14a = 2730

So:

a = 195 adult tickets sold

Plug in a, to find c:

3 (195) + 30 = c

585 + 30 = c

c = 615 children tickets sold

4 0
3 years ago
Name all the common multiples of 3 and 8 that are less than 50
serg [7]
Multiples of 3…. 3, 6, 9, 12, 15, 18, 24, 27, 30, 33, 36, 39.

i don’t know 8’s multiples so, i thought i’d provide at least 3’s multiples :) i hope you have a lovely rest of your day!
6 0
3 years ago
3 divided by 1/4. How many groups of 1/4 are in 3
Lunna [17]

Answer:

there are 12 groups of 1/4 in 3

Step-by-step explanation:

multiply the reciprocal of 1/4 to 3 (division)

3×4(reciprocal of 1/4)= 12

that is the answer

6 0
3 years ago
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zalisa [80]

Answer:

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Step-by-step explanation:

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You will notice that;

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In the <u>attached sketch of the plot</u>, join the points with a smooth curve and observe the above mentioned properties.

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at East Middle School there 58 left hand students in 609 right-handed students the numbers of left and right handed students at
snow_tiger [21]

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7 0
3 years ago
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