Ask question

Ask question

All categories

2 years ago

11

Two times the sum of number 5 is 20

1 answer:

oksian1 [2.3K]2 years ago

8 0

Salutations!

<span>Two times the sum of number 5 is 20

This will be your equation ---

</span> $2(x+5)=20$
<span>
Brackets indicate multiplication, therefore multiply 2 to the brackets

</span> $2(x+5)=20$
<span>
</span> $2x+10=20$
<span>
</span> $2x=20-10$
<span>
</span> $2x=10$
<span>
</span> $x=10/2$
<span>
</span> $x=5$
<span>
</span>Hope I helped (:

have a great day!

You might be interested in

A clock is constructed using a regular polygon with 60 sides. The polygon rotates every minute. How much has the polygon rotated

stepladder [879]

Answer:42°

Step-by-step explanation:So each minute, it advances by 1/60 of a complete rotation. A complete rotation is, of course, 360° . So each minute, it advances (360°/60) = 6° . (6° / minute) x (7 minutes) = 42°

3 0

2 years ago

Read 2 more answers

Write the equation in standard form. Identity the center and radius.<br> x² + y2 + 8x-4y-7=0

lorasvet [3.4K]

Answer:

equation;

$(x + 4) {}^{2} + (y - 2) {}^{2} = 27$

Center (-4,2)

Radius is

$3 \sqrt{3}$

Step-by-step explanation:

Since the x^2 and y^2 have the same coeffiecent this will be a circle in a form of

$(x - h) {}^{2} + (y - k) {}^{2} = {r}^{2}$

Where (h,k) is center

r is the radius

So first we group like Terms together

${x}^{2} + 8x + {y}^{2} - 4y - 7 = 0$

Add 7 to both sides

${x}^{2} + 8x + {y}^{2} - 4y = 7$

$( {x}^{2} + 8x) +( {y}^{2} - 4y) = 7$

Since the orginal form of the equation of the circle has a perfect square we need to complete the square for each problem

$(\frac{8}{2} ) {}^{2} = 16$

and

$( - \frac{4}{2} ) {}^{2} = 4$

so we have

${x}^{2} + 8x + 16 + {y}^{2} - 4y + 4y = 7 + 16 + 4$

${x}^{2} + 8x + 16 + {y}^{2} - 4y + 4y = 27$

$(x + 4) {}^{2} + (y - 2) {}^{2} = 27$

To find our center, h is -4 and k is 2

so the center is (-4,2)

The radius is

$\sqrt{27} = 3 \sqrt{3}$

So the radius is 3 times sqr root of 3.

8 0

1 year ago

Brian’s company logo consists of a giant triangle. He wants to paint this triangle on a wall in his office. The triangle that he

Nitella [24]

Your answer is 30ft
1/2 of base times height is 30
6 times 10 = 60
60/2 =30

4 0

2 years ago

2/3 is greater then 1/2 why?

irakobra [83]

Answer:

see below

Step-by-step explanation:

Lets get a common denominator

2/3 *2/2 = 4/6

1/2 * 3/3 = 3/6

4/6 > 3/6

2/3 > 1/2

7 0

2 years ago

Read 2 more answers

100 points. Which is the graph of f (x) x - 1/ x2 - x 6

Dovator [93]

Answer: the answer is c

Step-by-step explanation:

5 0

9 months ago