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Crazy boy [7]
3 years ago
11

A student and a pet run straight towards each other at constant speed, starting with a separation of 30 m. They meet somewhere i

n between. Draw a picture at the beginning and another at the end, and establish a coordinate system. Give names to important quantities.

Mathematics
1 answer:
Sloan [31]3 years ago
5 0

Answer:

View graph

Step-by-step explanation:

we have that at constant speed the student and the pet must travel equal distances in equal times, so they must be in the middle of the distance with the same travel time

As can be seen in graph 2 the distance of P = -15 m, and that of S = 15, the sign is due to the orientation, P goes to the left and S to the right

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. The regular price of a scooter is $89.99. The scooter is on sale for 20%
Artyom0805 [142]

Answer:

80

Step-by-step explanation:

3 0
2 years ago
Find the value of x. Round to the nearest degree.
lord [1]

<u><em>hii! how are you? hope you're having a good day! (: i wish you the best. <3 stay strong and stay safe!</em></u>

5 0
2 years ago
(20 Points)
storchak [24]

Answer:

2nd option will be the answer (y=4x²+48x+146)

Step-by-step explanation:

y=4(x+6)²+2

y=4(x²+2*x*6+6²)+2 [(a+b)²=a²+2ab+b²]

y=4(x²+12x+36)+2

y=4(x²)+4(12x)+4(36)+2

y=4x²+48x+144+2

y=4x²+48x+146

5 0
2 years ago
The sum of three numbers is 10. Two times the second number minus the first number is equal to 12.
eimsori [14]

<u>Answer:</u>

-10,1,19

<u>Step-by-step explanation:</u>

<u></u>

x+y+z = 10 (Equation 1)

2y-x= 12  (Equation 2)

x-y+2z = 7 (Equation 3)

(Equation 2): -x = -2y+12

                       x = 2y-12 (Equation 4)

(Equation 1) - (Equation 3): 2y-z = 3

                                              -z = -2y+3

                                               z = 2y-3 (Equation 5)

Substitute (4) and (5) into (1)

x+y+z = 10

(2y-12)+y+(2y-3) = 10

5y-15 = 10

5y = 5

y=1

Substitute y=1 into (2)

2y-x= 12

2(1)-x= 12

2-x= 12

-x= 12-2

-x= 10

x= -10

Substitute y=1 and x=-10 into (1)

x+y+z = 10

-10+1+z = 10

z-9 = 10

z = 10+9

z = 19

Order: x = -10, y = 1, and z = 19

8 0
3 years ago
Read 2 more answers
What is the solution of 2y + 3x - 6y ÷ 3x?
pentagon [3]

Answer:

=−2xy+3x+2y

Step-by-step explanation:

this is what i get in calculating

3 0
2 years ago
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