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maw [93]
4 years ago
11

Mrs. Singh wrote 4 equations on the board.

Mathematics
1 answer:
dalvyx [7]4 years ago
5 0

Answer:

A and B are not true

Step-by-step explanation:

A. 3 * 3= 9 NOT 1

B. 7-0 =7 NOT 0

C. 8*1=8

D. 0*4=0

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4. A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost
Pani-rosa [81]

Answer:

The total cost for 8 hours of work is $425.

The total cost for 10 hours of work is $525.

The total amount the plumber earns is made up of a fixed charge and a variable charge. A fixed charge is a charge that remains constant regardless of the number of hours the plumber works. The fixed charge is $25. The variable charge is the charge that increases per hours worked. The variable charge is $50 per hour.

Cost = fixed charge + variable charge

C = $25 + $50h

The total cost for 8 hours

$25 + $50(8)

$25 + $400

= $425.

The total cost for 10 hours

$25 + $50(10)

$25 + $500

$525.

Step-by-step explanation:

hope this helps

8 0
2 years ago
In circle k, what is the value of x? <br><br> A: 18<br> B: 20<br> C:36<br> D:90
mixer [17]

If a triangle is inscribed in a circle such that one side of that triangle is a diameter of the circle, then the angle of the triangle that is opposite the diameter is a right angle.

Therefore we have the equation:

5x = 90      <em>divide both sides by 5</em>

x = 18

<h2>Answer: A: 18</h2>
8 0
4 years ago
A certain roller coaster can accommodate 1600 riders per hour a digital sign states that there are 345 people in line if you get
sergiy2304 [10]
Given that the <span>roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

Given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

Therefore, it will take you 12.94 minutes to get to the front of the line.
</span>
8 0
3 years ago
The revenue generated by the band is given by the expression 50x+150y.
Dafna1 [17]

Answer:

They exceed their goal by $150.

Step-by-step explanation:

If x = weekday shows and y = weekend shows, then

50(15) + 150(6)

750 + 900 = 1650

1650 - 1500 = 150

8 0
2 years ago
Does the equation below define a linear function? y = 3/x, when x ≠ 0
Arisa [49]

we know that

Linear function:

A linear function is a function whose graph is a straight line, that is a polynomial function of degree at most one

For exp: y=mx+b

Here , we are given

y=\frac{3}{x}

we can see that

x is in denominator

so, this can not be linear function........Answer

8 0
3 years ago
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