3 years ago

Jim and two friends are sharing the cost to buy snacks for a birthday party this weekend.

Mathematics

1 answer:

saw5 [17]3 years ago

7 0

Answer is not on there

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Please help!<3 tysm if u helped

Vilka [71]

Answer:

x = 0 1 -1 -2

y = -3 -4 -2 -1

Step-by-step explanation:

equation : 3y+9x = -9

when x = 1

3y+3x = -9

or, 3y + 3×1= -9

or, 3y+3=-9

or, 3y = -12

so, y = -4

Again

Let's suppose x as -1

3y+3x= -9

or, 3y+ 3×-1 = -9

or, 3y-3 = -9

or, 3y = -6

y = -2

Let's suppose x as -2 now,

3y+3x = -9

3y+3×-2 = -9

or, 3y-6 = -9

or, 3y = -3

so, y = -1

5 0

2 years ago

An athlete runs around a circular track. The track has a diameter of 200 feet. How many laps does she need to take to run a mile

Shtirlitz [24]

First you have to figure out the length of the track:

$2 * \pi * r$

r is the half of the diameter:
200ft : 2 = 100ft

$2* \pi *100ft$ = 200 $\pi$ ≈ 628,31

The athlete has to run ca. 5280ft for one mile:

5280 : 628,31≈8,4

The athlete has to run 8,4 laps

3 0

3 years ago

What's the answer???

Triss [41]

Answer:

2nd option

Step-by-step explanation:

4 0

3 years ago

You and your friend play a video game. You have a final score of 40 points, and your friend has a final score of -21 points. by

Serhud [2]

Answer:40+(-21)= 19