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saveliy_v [14]
3 years ago
6

I have been doing math all day, please help!

Mathematics
2 answers:
Murljashka [212]3 years ago
5 0
Y=-3x+4 is the correct answer
Darya [45]3 years ago
3 0

Answer:

y = -3x + 4

Step-by-step explanation: Substitute the numbers in for x & y to see which one is the answer.

(-1, 7):

y = -3x + 4

7 = -3(-1) + 4

7 = 3 + 4

7 = 7

TRUE


y = 2x - 9

7 = 2(-1) - 9

7 = -2 - 9

7 = -11

FALSE


y = 5x - 2

7 = 5(-1) - 2

7 = -5 - 2

7 = -10

FALSE


y = -3x + 7

7 = -3(-1) + 7

7 = 3 + 7

7 = 10

FALSE


Hope this helps you!!! :)


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Jared and Pedro walk 1 mile in about 15 minutes. They can keep up pace for several hours. About how far they walk in 65 minutes
VladimirAG [237]
<h2><u>Answer:</u></h2>

Jared and Pedro walked a total of <u>4.3 miles</u>

<h2><u>Step-by-step explanation:</u></h2>
  • The equation for distance is <u>speed = distance ÷ time.</u>
  • Rearrange the equation to make distance the subject:

        <em>(multiply both sides by time)</em>

<em>         </em><u>Distance = Speed × Time</u>

  • Convert your numbers into suitable units:

        1 mile ÷ 15 = <u>0.06m/minute</u>

  • Finally, substitute the numbers into the equation and solve:

        Distance = 0.06 × 65 = <u>4.3miles</u> (rounded to the nearest decimal place)

<h2 />

4 0
3 years ago
Is (2, 2) a solution of y &lt; 4x – 6?
Roman55 [17]

Answer:

No

Step-by-step explanation:

To see if (2,2) is a solution, substitute them into the inequality and see if it is true.

2 is our x value, and 2 is also our y value

y < 4x – 6

2< 4(2)– 6

2 < 8 – 6

2 < 2

This statement is false. 2 is not less than 2, so (2,2) is not a solution to this equation.

6 0
3 years ago
Calculate the area of a regular octagon if the radius is 10 cm long.
charle [14.2K]

Answer:

Area is A≈282.8 cm  

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Lori is 6 years
Delicious77 [7]

Answer:

12:6

Step-by-step explanation:

6 times 2 because Lori is six and her cousin is twice her age (hope it helps)

7 0
3 years ago
HELP pls What is the equation for the line?<br><br><br><br> Enter your answer in the box.
FrozenT [24]

Answer:

y=8x

Step-by-step explanation:

To find the slope, or m, pick 2 points.

I chose (0, 0) and (2, 16)

The use the slope formula

16-0/2-0

16/2

8

to find the y-intercept, or b, find the point where the line crosses the y-axis, which is (0, 0). Take the y-coordinate, which is 0.

So,

y=8x+0

or y=8x

8 0
3 years ago
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