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Flura [38]
3 years ago
7

I WILL AWARD BRAINLIEST!! PLEASE HELP!!

Mathematics
1 answer:
eimsori [14]3 years ago
6 0

Answer:

 A(...; 9)

x = 57/7

 B(4; ...)

y = 16/5

m = 7/5

Step-by-step explanation:

7x−5y=12

For point  A(...; 9)

We know y = 9

Substitute it in

7x−5(9)=12

7x -45= 12

Add 45 to each side

7x-45+45=12+45

7x = 57

Divide by 7

7x/7 = 57/7

x = 57/7

For point  B(4; ...)

We know x=4

Substitute it in

7(4)-5y =12

28 - 5y =12

Subtract 28 from each side

28-28 -5y =12-28

-5y =-16

Divide by -5

-5y/-5 = -16/-5

y = 16/5

Now we need to find the slope by solving the equation for y

7x -5y = 12

Subtract 7x

-5y=  -7x +12

Divide by -5

-5y=  -7x +12

-5y/-5 = -7x/-5 +12/-5

y = 7/5 x -12/5

This is in the form y = mx +b where m is the slope

m = 7/5

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Can some help I’m suffering with this question
ziro4ka [17]

Answer:

38 quarters

Step-by-step explanation:

0.25 x 63 = 15.75

0.05 x 63 = 3.15

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

0.25 x 50 = 12.50

                    +         = $13.15

0.05 x 13 = 0.65

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

0.25 x 25 = 6.25

                   +        = $8.15

0.05 x 38 = 1.90

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

0.25 x 30 = 7.50

                   +         = $9.15

0.05 x 33 = 1.65

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

0.25 x 35 = 8.75

                   +        = $10.15

0.05 x 28 = 1.40

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

0.25 x 38 = 9.50

                   +        = $10.75

0.05 x 25 = 1.25

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

I hope this helps!

4 0
2 years ago
55 less than 1/3 of the number is 31
kati45 [8]
False. 1/3 of 31 is about 10, so 55 is bigger than 10
6 0
2 years ago
Read 2 more answers
Phil is riding his bike. He rides 54 miles in 4 hours, 67.5 miles in 5 hours, and 81 miles in 6 hours. Find the constant of prop
AleksandrR [38]

Answer:

K=13,5

y=13,5x, x=numbers of hours

Step-by-step explanation:

To find the  proporcionality constant, divide the number of milles traveled in given time.

K=54/4=67,5/5=81/6=13.5 and the equation that describes the relationship is y=13,5x

3 0
3 years ago
Read 2 more answers
What is the value of x in the equation shown below.<br><br>0.25x + 7 = 4(x - 2)​
Vanyuwa [196]

Answer:

4

Step-by-step explanation:

because if you distribute youll have 4x

7 0
3 years ago
Read 2 more answers
What is Start Fraction 5 Over 8 End Fraction divided by One-fourth?
Archy [21]

Answer:

2.5

Step-by-step explanation:

5/8 ÷ 1/4

Division sign changes to multiplication and the reciprocal of the divisior is used to multiply instead :

5/8 * 4/1

= (5*4) / (8*1)

= 20 / 8

= 2.5

3 0
2 years ago
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