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Karolina [17]
3 years ago
13

Helllllpppppp!

Mathematics
2 answers:
Akimi4 [234]3 years ago
8 0

Answer:

Step-by-step explanation:

The system of equations is:

● 3x + 2y = 7

● 2x + 4y = 8

Where x is the price of a single coffee and y is the price of a single coffee

We will solve this simultaneous equations using the graphing method:

The solutions is the intersection point of to the lines.

(Picture below)

The intersection point is (1.5,1.25)

andreyandreev [35.5K]3 years ago
5 0

Answer:

x = 1.5

y =1.25

Step-by-step explanation:

3x+2y=7

2x+4y=8

Multiply the first equation by -2

-2(3x+2y=7 )

-6x-4y = -14

Add this to the second equation

-6x-4y = -14

2x+4y=8

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

-4x = -6

Divide by -4

-4x/-4 = -6/-4

x = 1.5

Now find y

3x+2y=7

3(1.5) + 2y = 7

4.5 +2y = 7

Subtract 4.5 from each side

2y = 2.5

Divide by 2

y = 1.25

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PLEASE HELP ;)<br> Who did it right?<br><br> Find the slope of the line perpendicular to 2x+3y=8
levacccp [35]

Answer:

Marissa.

Step-by-step explanation:

To find perpendicular slope you basically take the slope of the given line and reverse whatever sign it had previously. (If it was negative, it would become positive. If it was positive it would become negative.)

By doing -A/B it make the previous slope negative.

Brandon only flipped the fraction which would just result in the slope being slightly steeper, or in this case, less steep than the previous line, rather than making it perpendicular.

Hope this helps! Stay safe and if you have any questions feel free to ask!

6 0
3 years ago
What is the center of (13,-2),(-1,-2),(6,-9)
goldfiish [28.3K]

Answer:

The center is [-1,-2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the inverse of the function? f(x)=3x−1
Hatshy [7]

Answer:

The inverse is 1/3 (x+1)

Step-by-step explanation:

y = 3x-1

Exchange x and y

x = 3y-1

Solve for y

Add 1 to each side

x+1 = 3y-1+1

x+1 = 3y

Divide each side by 3

(x+1)/3 = 3y/3

1/3(x+1) =y

The inverse is 1/3 (x+1)

5 0
3 years ago
Please help ASAP! Only answer if you know the correct answer! Thanks :)
ruslelena [56]

Answer:

29 Minutes

Step-by-step explanation:

The original speed is given in miles per hour (like a car), but the answer is asking for miles per minute, so we must convert the speed into miles per minute first. To do this, we set up this equation: \frac{10.1 miles\ }{1 hour}x\frac{1}{60minutes} which equals  \frac{0.168333333miles}{minute}. We can then divide the desired number of miles by the speed in miles per minute. Here is the eqaution for this \frac{4.9miles}{\frac{0.168333333miles}{1minute} }. The miles cancel and you are just left with 29.1 minutes after you divide 4.9 by 0.168333333. Hope this helps!

7 0
2 years ago
Sheeesh help me out and say hi​
Rainbow [258]

Answer:

hey

Step-by-step explanation:

hope you having a great day

3 0
2 years ago
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