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ycow [4]
3 years ago
11

Lisa and Daisy work at a hair salon. The salon charges $21 for a hair styling session with Lisa and $17 for a session with Daisy

.
Their income on a certain day is projected to be $357. This situation can be represented by the equation 21x + 17y = 357, where x is the number of Lisa's customers and y is the number of Daisy's customers.

(Technical details: x ≥ 0, y ≥ 0, and x and y take only integer values.)

How many customers would Lisa need to serve to attain the projected income if Daisy calls in sick that day?
Mathematics
1 answer:
Readme [11.4K]3 years ago
7 0

Answer:

17.

Step-by-step explanation:

21x + 0 = 357

divided each side by 21 and you are left with x=17

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Cross multiply to get answer<br> x + 5/10 = 2x-3/15
Andreyy89

Once cross multiplied you end up with this:

15x+75=20x−30

Next subtract 20x from both sides.

15x+75−20x=20x−30−20x

−5x+75=−30 -----------> Answer

Now subtract 75 from both sides

−5x+75−75=−30−75

−5x=−105

Now divide by -5 on both sides.

-5/-5x = -105/-5

<h3 /><h3>x = 21 --------------> ANSWER</h3>
3 0
3 years ago
Please asap!!!!! (photo below)
Bond [772]

Answer:

132 degrees

Step-by-step explanation:

these angles are Alternate interior angles so angle A is congruent to angle B.

5x-18 = 3x+42

-3x         -3x

2x-18 = 42

+18       +18

2x    =   60

÷2     ÷2

x=30

A=5(30) -18

  = 150-18

  = 132 degrees

HOPE THIS HELPS

6 0
4 years ago
I need help because I didn't understand and I don't know how to do and I don't know plz help me and if you help me I would like
zepelin [54]
Umm what do you need helo with?
3 0
4 years ago
PLEASE HELP!!! 20 POINTS!!!!
stealth61 [152]
To evaluate the expression all you have to do is substitute the value for the variable.

3 + y + 6, y = 5
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The solution is 14.
8 0
3 years ago
Read 2 more answers
The inverse of this equation
In-s [12.5K]

Answer:

{f}^{ - 1}(x)  =  \frac{x + 11}{ - 5}

Step-by-step explanation:

f(x) =  - 5x - 11 \\  - 5x - 11 =x \\  - 5x = x + 11 \\  {f}^{ - 1}(x)  =  \frac{x + 11}{ - 5}

7 0
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