A number is first increased by 20 and then doubled. The result is 2 less than 5 times the number
a.2(x+20)=5x-2
b.20(x+2)= -2x+5
c.2(x+20)=2x-5
d.2(x-20)=5x+2

Answer:

its 5823

Step-by-step explanation:

help urself

Answer:

x= 6, y= 5

Step-by-step explanation:

-2x +3y= 3 -----(1)

-4x +5y= 1 -----(2)

(1) ×2:

-4x +6y= 6 -----(3)

(3) -(2):

-4x +6y -(-4x +5y)= 6 -1

Expand:

-4x +6y +4x -5y= 5

y= 5

Substitute y= 5 into (1):

-2x +3(5)= 3

-2x +15= 3

2x= 15 -3

2x= 12

x= 12 ÷2

x= 6

Answer:

Step-by-step explanation:

ASSUMING the given dimensions are the lengths of the legs

we have an equilateral triangle with base 4 and height

h = √(3² - (4/2)²) = √5

A = ½bh = ½(4)(√5) = 2√5 cm²

Answer:

Step-by-step explanation:

What is x in x^2-x-6=0 pls

x^2 - x - 6 = 0

x + 2 * x - 3 = 0

x + 2 = 0

x - 3 = 0

x = 2 or -3

Answer:

x= -2 or x= 3

Explanation:

the factors of -6 which sum to -1 are -3 and + 2

(x - 3) (x + 2) = 0

equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = −2

x − 3 = 0 ⇒ x = 3

Answer:

100

Step-by-step explanation:

Answer:0.75

Step-by-step explanation:

i just did it

Answer:

thanks for the points

Step-by-step explanation:

Answer:

480in

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

6 * 8 = 48

48 / 2 = 24

because it's half a square

Answer:

625 meters in 25 seconds

250 meters in 10 seconds

Step-by-step explanation:

125 x 5 = 625

125 x 2 = 250

Answer:

Step-by-step explanation:

10 - m = m - 10                  is  one solution

7x + 5 = 7(x + 5)                is  no solution

3(t + 2) = (2 + 3t) + 4         is identity

hope this helps!

mark me brainliest :D

Answer:

0.0423333333 meters

Step-by-step explanation:

When you convert, you will receive the same result.

263 / 4

How many times can 4 fit into 263

65.75

I hope this helps! :)

Answer:

hi there is that something you can block

Answer:

We can apply the formula for surface area of a rectangular prism here. i.e.

Step-by-step explanation:

A=2(l×w + h×l + h×w), where l is length, h is height and w is width.

As mentioned above, length = 12 cm, width = 8 cm and height = 6 cm.

Therefore

2(12×7+6×12+6×8)=2(84+72+48)=2(204)=408. So the surface area of the brick is 408 square centimetres.

Answer:

Angle sum property

Step-by-step explanation:

This is because one exterior angle is equal to the sum of the other two interior angles.

Answer:

Rico moved his decimal to the left instead of to the right. So the answer should be 750

Step-by-step explanation:

When you multiply, your moving the decimal to the right so the number gets bigger.

Hope this helps~! :3

Answer:

750

Step-by-step explanation:

As you move the decimal over to the right 2 places.

Answer:

Yes.

Step-by-step explanation:

2.34 is a terminating decimal, meaning that it ends. Therefore, it is rational.

Answer:

ewwe

Step-by-step explanation:

A water sprinkler has a rotational motion in order to reach a broad area

from its stationary location.

The time it takes the sprinkler to reach the far right position is 36 seconds.

Reasons:

The given parameter are;

The angular speed of the water sprinkler, ω = 5° per second

Location where the sprinkler starts = The far left position

Required:

The time it takes the sprinkler to reach the far right position.

Solution;

The angle covered by moving from the far left to the far right, θ = 180°

Time required is given as follows;

[tex]\omega = \mathbf{\dfrac{\theta}{t}}[/tex]

Therefore;

[tex]t = \dfrac{\theta}{\omega}[/tex]

Which gives;

[tex]t = \dfrac{180 ^{\circ}}{5^{\circ}/s} = 36 \, s[/tex]

The time it takes the sprinkler to reach the far right position, t = 36 seconds.

Learn more here:

https://brainly.com/question/14753185

Answer: next two are 9:50 and 10:15

Step-by-step explanation:

The conjecture is, a term is equal to the previous term twenty five minutes later.

The point of concurrency of the three median is the centroid of the triangle ABC.

Reasons:

The given parameters are;

The medians of the triangle ABC = Segments BF, CD, and AE

The  length of segment FK = 3.40

Length of segment EK = 1.63

Required:

The sum of the lengths of segment AK and BK

Solution:

The ratios of the lengths of AK to KE = 2:1

Therefore, we have;

[tex]\dfrac{AK}{KE} = \dfrac{2}{1} = \mathbf{\dfrac{AK}{1.63}}[/tex]

1.63 × 2 = 1 × AK

AK = 3.26

Similarly, we have;

[tex]\dfrac{BK}{KF} = \dfrac{2}{1} = \mathbf{\dfrac{BK}{3.40}}[/tex]

3.40 × 2 = BK

6.80 = BK

Which gives;

AK + BK = 3.26 + 6.80 = 10.06

The sum of the lengths of AK and BK = 10.06

Learn more here:

https://brainly.com/question/7856454

Answer:

4

Step-by-step explanation:

x = - 2

y = 3

l - x - 2y l

= l - ( - 2 ) - 2 ( 3 ) l

= l 2 - 6 l

= l - 4 l

= 4

Answer: Try square root for the first one.

Step-by-step explanation: I know a lot about graphs tell me if I am right or wrong. Ok?

Answer:

see below

Step-by-step explanation:

a) no of hours in a day = 24

no of min in a day = 24 * 60

so min > hours

b) from 0 to 20 all are integers

but few are prime numbers

so integers > primes

c)from -50 to 50

rational numbers are infinite but integers are limited to 101 numbers

so rational > integers

d)1m = 100cm

so always cm > m

Answer:

0.627

Step-by-step explanation:

I will turn the word form of the number into decimal form backwards to make it easier:

7 is in the thousandths place

2 is in the hundredths place

6 in the tenths place

0 being in the ones place

That being said, the word form of a number can be turned into number, decimal, percent and fraction forms! Any other problems involving forms of numbers, you can come to me :D

Answer:

1. 1 person

2. 30 years

3. one mortgage and one credit card

4. $8,850

5. $2,695

6. She’s 60 days overdue, by $50, on 1 account

7. 29 months

Step-by-step explanation:

Answer: yeah hes right the other guy that answered this

Step-by-step explanation:

Answer:

ratios which are in only one negative sign they are in negative rational number and others are in positive

Answer:

12:23

12 to 23

12/23

Step-by-step explanation: