3 years ago

10. Write a number sentence for the model. Let one white tile equal +1 and one black tile equal –1.

Mathematics

1 answer:

Darina [25.2K]3 years ago

5 0

The Correct answer to it is -14 - (-6) = - 8

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Help? I'd Appreciate it!

kondor19780726 [428]

<u>Answer</u>

y = (1/2)x - 1

<u>Explanation</u>

The first step is to get the gradient of the line.

The two points in the line are; (2,0) and (-2, -2).

Gradient = (-2 - 0)/(-2, - 2)

= -2/-4

= 1/2

To get the function we use one of the point (2,0) and a general point (x,y).

1/2 = (y - 0)/(x - 2)

1/2 = y/(x - 2)

(x - 2) = 2y

2y = x - 2

y = (1/2)x - 1

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2 years ago

If a line with a slope of -2 crosses the y-axis at (0,3). What is the equation of the line?

baherus [9]

It technically would be y=3x-3 in the y=mx+b formula, but it could also be rewritten 3x-y=3. Hope this helps!

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2 years ago

Complete the statements.

IRISSAK [1]

Answer:

ax+b

Step-by-step explanation:

6 0

3 years ago

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Jada's grandparents started a saving account in 2010 , the rable shows the amount in the account each year

Vaselesa [24]

Answer: we need the table to solve this

Step-by-step explanation:

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1 year ago

The Sum of twice a number and 5 is at most 15. What are the possible values for the number?

NISA [10]

Let's call that number x, twice the number will be 2x, sum of it and 5 is, 2x+5. So if this expression is at most 15, it means, it can be only less than 15 and equal to 15. Let's show this as an inequality.

$2x+5\le 15$

Let's solve.

$2x+5\le 15\\ \\ 2x\le 15-5\\ \\ 2x\le 10\\ \\ x\le \frac { 10 }{ 2 } \\ \\ x\le 5$

$x\quad \in \quad \left[ -\infty ,5 \right]$

If the number is a natural number. The values it can take is, $x\quad \in \quad \left[ 0,1,2,3,4,5 \right]$

6 0

3 years ago

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