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3 years ago

Find the value of x −9(10+x)=−243

Mathematics

1 answer:

Ilya [14]3 years ago

3 0

Answer:

x = 17

I think this is the value for x

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Peter says, "If you subtract 13 from my number and multiply the difference by -3, the result is

Art [367]

Answer:

Peter's number is 36.

Step-by-step explanation:

If you subtratct 13 from 36, you get 23.

If you multiply that times -3, you get -69.

(The way I got 23 was by dividing -69 and -3)

I hope this helped you even though it's late.

6 0

3 years ago

2. The distance between two towns is 7 km. On a map, the distance between the towns is 28 cm. Find, as a ratio, the scale of the

liberstina [14]

scale of the drawing = original dimensions / dimensions of the scale drawing

7/28

Ans 1:4

Answered by GauthMath please heart it and comment thanks if you like

4 0

3 years ago

To solve the equation x ^2 - 2x = 3 by the technique of completing the square, you would add 4 to each side of the equation as o

Karolina [17]

Answer:

x = -1

x = 3

Step-by-step explanation:

$\sf x^2 - 2x = 3$

Add 1 to both sides:

$\sf \implies x^2 - 2x+1 = 3+1$

Factor the left side:

$\sf \implies (x-1)^2 = 4$

Square root both sides:

$\sf \implies x-1 = \pm2$

Therefore:

$\sf \implies x-1=-2 \implies x=-1$

$\sf \implies x-1=2 \implies x=3$

6 0

2 years ago

. The land area of Charlotte, NC is approximately 3 x 102 square miles.

lidiya [134]

Answer:

Option A

Step-by-step explanation:

Land area of Charlotte, NC = $3\times 10^2$ square miles

Scale to be used,

1 square miles = $6.4\times 10^2$ square acres

By this scale,

$3\times 10^2$ square miles = $(6.4\times 10^2)\times(3.2\times 10^2)$ square acres

= $(6.4\times 3)\times 10^{2+2}$

= $19.2\times 10^4$ square acres

= $1.92\times 10^5$ square acres

Therefore, Option A will be the correct option.

7 0

2 years ago

Pls help it’s due soon and I’m failing :(

romanna [79]

Answer:

Slope is 2/3

Y-intercept is (0, 0)

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

y = 2/3x

5 0

2 years ago

Read 2 more answers