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Neporo4naja [7]
3 years ago
6

Write the slope-intercept form of the linear equation of a line with slope of -3/4 and a y intercept of (3,0)

Mathematics
1 answer:
WINSTONCH [101]3 years ago
6 0

Answer:

y= -3/4 +3

Step-by-step explanation:

slope-intercept form formula is y=mx+b

 mx= slope

 b= y-intercept

Therefore, if you input the numbers into the equation it is

y=-3/4 +3

<u>it is 3 because this point is located at 3 on the y-axis</u>

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A music store sold a total of 27 used trumpets and clarinets in one month. Trumpets cost $149 and clarinets cost $99. If total s
vodomira [7]
Answer: 16

Solution:

1) Use letters to identify the variables:

Number of trumpets: t
Number of clarinets: c

2) Translate each statement into algebraic (mathematical) language.

2.1) Sold a total of 27 used trumpets and clarinets

=> t + c = 27

2.2) Trumpets cost $149 and clarinets cost $99

Total cost of the trumpets: 149t
Total cost of clarinets: 99c

Total cost = 149t + 99c

2.3) Total sales were $3223

=> 149t + 99c = 3223.

3) State the system of equations:

Equation (1) t + c = 27
Equation (2) 149t + 99c = 3223

4) Solve the system of equations:

4.1) Multiply equation 1 by 149:

=> 149t + 149c = 4023

4.2) Subtract the equation (2) from the equation obtained in 4.1

=> 149c - 99c = 4023 - 3223

=> 50c = 800

=> c = 800 / 50 = 16

5) Verify the solution:

From equation (1) t = 27 - 16 = 11

Total cost = 149*11 + 99*16 = 3223

Now you have a verified answer: they sold 16 clarinets
7 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST
Verizon [17]
Four different ways to solve a quadratic equation are factoring, completing the square, quadratic formula, and graphing. all methods start with setting the equation equal to zero.

to determine the zeros of a quadratic graph, find the points where the graph of the quadratic equation crosses the x-axis. to determine the vertex, you convert the quadratic form to vertex form, you use this process of completing the square. to determine the axis of symmetry, you cut the graph vertically to see the symmetrical sides.

hope this helps, God bless!
8 0
3 years ago
Use the sine ratio to find the variable
jek_recluse [69]
Answer: 6.8829172362
Explanation:
sin35=e/12
Multiply 12 on each side
12sin35=e
4 0
3 years ago
PLS ANSWER ASAP THANKS
Afina-wow [57]

Answer:

x=54°

Step-by-step explanation:

x+36°=90°

x=90°-36°

x=54°

<em><u>HOPE IT HELPS U </u></em>

<em><u>HAVE A GREAT DAY</u></em>

3 0
2 years ago
Lucy drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took hours. When Lucy drove hom
Anastasy [175]

Answer:

The question is incomplete, the complete complete question will be:

Lucy drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 9 hours. When Lucy drove home, there was no traffic and the trip only took 4 hours. If her average rate was 40 miles per hour faster on the trip home, how far away does Lucy live from the mountains?

Lucy live at a distance of 288 miles from the mountains.

Step-by-step explanation:

DATA:

To the mts DATA:

Time = 9 hrs

Rate = r mph

Distance = 9r miles

From the mts DATA:

time = 4 hrs  

rate = r+40 mph  

distance = 4(r+40) miles

SOLUTION

Distance to = Distance from

9r = 4r + 160

5r = 160

r = 32 mph

RESULT:

Distance = 9r = 9*32 = 288 miles

8 0
3 years ago
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