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crimeas [40]
3 years ago
13

the graph shows that lisa's earnings are proportional to the number of hours that she works.This relationship can be represented

by an equation in the form y = kx. what is the value of k in the equation?

Mathematics
1 answer:
Annette [7]3 years ago
3 0

c. 25 because she gets $25 per hour

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At Niagra High, Mr. Borton bought 4 student tickets and 2 adult tickets for the high school musical which cost $64. then Mrs. Ge
balandron [24]

Answer:

Each student ticket costs $8.33

Each adult ticket costs $15.34

Step-by-step explanation:

At Niagra High, Mr. Borton bought 4 student tickets and 2 adult tickets for the high school musical which cost $64. then Mrs. Gelvoria bought 3 student tickets and 3 adult tickets for the show and it cost her $72. How much are each type of tickets?​

s = cost of each student ticket

a = cost of adult ticket

Our system of equations:

4s + 2a = 64

3s + 3a = 71

-3(4s + 2a = 64) ==> -12s - 6a = -192

2(3s + 3a = 71) ==>     6s + 6a = 142

-12s - 6a = -192

  6s + 6a = 142

-6s = -50

/-6      /-6

s = $8.33 (the cost of each student ticket)

Now, let's find the cost of each adult ticket:

4s + 2a = 64

4(8.33) + 2a = 64

33.32 + 2a = 64

-33.32         -33.32

2a = 30.68

/2        /2

a = 15.34 (the cost of each adult ticket)

(x, y) ==> (8.33, 15.34)

Check your answer:

4s + 2a = 64

4(8.33) + 2(15.34) = 64

33.32 + 30.68 = 64

64 = 64

This statement is true

Hope this helps!

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A stack of 9 different cards are shuffled and spread out face down. If 4 cards are tired face up, how many different 4-card comb
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Answer:

126.

Step-by-step explanation:

This is the number of combinations of 4 cards  from 9 cards:

= 9C4

= 9! / 4! 5!.

A quick way of calculating this is  

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----------- =   9*2*7   =    126 combinations.

4*3*2*1

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60=5x-70 is what it is
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The surface area formula is 4 x pi x r^2

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What is the average rating for operative effectiveness for national group for all 5 weeks 3.5 3.5 3.8 3.7 3.4
dsp73

Answer:

3.58

Step-by-step explanation:

You must add up all of the numbers which will get you 17.9

Then divide 17.9 by the total amount of numbers (5) = 3.58

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