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bixtya [17]
3 years ago
12

Joaquin is ordering 5 identical sandwiches and a bag of chips. The bag of chips cost $1.25 and the entire order costs $38.75. Wr

ite an equation you can use to find the price of the sandwhich. Let’s represent the price of the sandwhich.
Mathematics
1 answer:
GenaCL600 [577]3 years ago
3 0

Answer:

A sandwich costs $7.5

Step-by-step explanation:

Given

Represent chips with c and sandwiches with c

c = \$1.25

Total = \$38.75

From the question, we understand that 5 sandwiches were ordered.

Hence, the question of the system is:

5s + c = Total

Substitute values for Total and c

5s + 1.25 = 38.75

Collect Like Terms

5s  = 38.75 - 1.25

5s  = 37.5

Divide both sides by 5

s = \frac{37.5}{5}

s = 7.5

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PSEG Long Island charges its residential customers a little monthly service charge plus an energy charge based on the amount of
german

Using linear function concepts, it is found that:

  • a) It costs $0.1 for each kilowatt hour of electricity used in excess of 250 kWh.
  • b) f(90) = 46.6, which is the cost of 340 kWh of consumption in a month.

------------------------------

A <em>linear function </em>has the format given by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

The equation for the cost of h kilowatt hours (kWh) of electricity used in excess of 250 kWh is of:

C = f(h) = 37.6 + 0.1h

Item a:

  • The slope is of m = 0.1, which means that it costs $0.1 for each kilowatt hour of electricity used in excess of 250 kWh.

Item b:

f(90) = 37.6 + 0.1(90) = 37.6 + 9 = 46.6

250 + 90 = 340.

f(90) = 46.6, which is the cost of 340 kWh of consumption in a month.

A similar problem is given at brainly.com/question/24808124

8 0
2 years ago
2) Jim get $200 for 50 sales, $350 for 70 sales, and $500 for<br> 85 sales. This is called
VladimirAG [237]

Answer:

salary based on how many sales are made

Step-by-step explanation:

8 0
3 years ago
F(x)=√x-3<br><br>answers<br><br>A) √x-3≥0<br>B) x-3≥0<br>C) √x-3≤0<br>D) x-3≤0​
Zina [86]
Its B bro becauseiys a negative so you would get rid of the symbol then flip the negative
5 0
3 years ago
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Someone h e l p me on this it is geometry
ladessa [460]

BC = 6 km

<u>/</u><u> </u> ACB = 34°

AC = ?

cos 34° = \frac{BC}{AC}

=> 0.829 = \frac{6}{AC}

=> AC = \frac{6}{0.829}

=> AC = 7.23763570567

=> AC = 7 km

=> AC = 10 km\:\:\:\:\:\:\:\: (nearest tenth)

\\

<h3>Answer : 10 km</h3>

\\\\\\\\

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST ☺️

7 0
3 years ago
Which of the following graphs shows the preimage P(x)=x^2 and the image I(x)=P(1/3x)?
Ksju [112]

Answer:

The picture with the widest graph in red

Step-by-step explanation:

The graph P(x) is the parent graph for all quadratic functions. It has a vertex of (0,0) and has the following points:

x      f(x)

-2      4

-1       1

0       0

1         1

2       4

The image of l(x) = P(1/3x) changes the points of the function to

x      f(x)

-2/3      4/9

-1/3        1/9

0       0

1/3        1/9

2/3       4/9

This makes the graph much wider. The graph with the widest red graph is the graph.

7 0
4 years ago
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