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3 years ago

Solve the system by graphing y = x -1 y = -2x -4

Mathematics

1 answer:

Grace [21]3 years ago

6 0

Answer:

d = 26.196374

For:

(X1, Y1) = (-7, -4)

(X2, Y2) = (17, 6.5)

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Melia put the $30 her Grandmother gave her for her tenth birthday into her piggy bank. Each week after

Vladimir [108]

This is a sequence because the points form a straight line. The expression is: t(n) = 30 + 2x, x is number of weeks. On her 18th birthday, that is 8 years after her 10th. that means 416 weeks have passed since her 10th birthday. Plug 416 into the equation to get: t(416) = 30 + 2(416) = $862. She will have $862 to Spend.

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4 years ago

At a movie theater, tickets for children cost $6.05 each and adult tickets cost $8.75 each. If ticket sales for a group of 35 pe

insens350 [35]

Answer:

More unknown than equations, the answer cannot be determined

Step-by-step explanation:

We can solve by means of a 2x2 system of equations, we have to:

"x" is the number of children's tickets

"y" is the number of adult tickets

Thus:

blank * x + 8.75 * y = 259

x + y = 35

which means that the number of children in the group cannot be calculated with the supplied data, this is because we have 3 unknowns and there are 2 equations, which means that the system has no solution.

If we assume a value, for example, $ 5

We can solve:

5 * x + 8.75 * y = 259

x + y = 35 => x = 35 - y

replacing we have:

5 * (35 - y) + 8.75 * y = 259

175 - 5 * y + 8.75 * y = 259

- 5 * y + 8.75 * y = 259 - 175

3.75 * y = 84

y = -84 / 3.75

y = 22.4

Thus:

x = 35 - (22.4) = 12.6

there being then 22 adults and 13 children.

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4 years ago

1) The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 12 cm, the length of a radius of the circl

n200080 [17]

Answer:

24cm and 225cm

Step-by-step explanation:

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3 years ago

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Sati [7]

Slope = 70,000
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3 years ago

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