Mathematics High School

Twice a number increased by five is 11. What is the number?

Answers

Answer 1

Answer:

2

Step-by-step explanation:

Related Questions

NEED HELP ASAP! ill give brainliest

Answers

Answer: (0,3) 2. no

Step-by-step explanation:

whats the slope of the line and whats in on the graph?

Answers

Answer:

-1 is the slope

Step-by-step explanation:

The rise is up 1 and the run is sideways 1.

Hope it helps!

Hector spent $40.75 for 2 DVDs that cost the same amount. The sales tax on his purchase was $4.15. Hector also used a coupon for $1.00 off his purchase. How much did each DVD cost?

Answers

Answer:

36.75 + 1 = 37.75 - 2.15 = 35.60/2 = 17.80

pid 2. The perimeter of triangle GHI is 40 cm. If both triangles are similar, then what is the length of JT. 15 cm 15 cm Wool 10 cm G

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Write your answer below:

Which best describes a standard thermometer...
EXPLAIN

Rational
Real Number
Whole Number
Integer

Answers

Answer:

inteager

Step-by-step explanation:

temperature can express both positive and negative

{y=2x
{x=-y+6

please help i have a 27 in this class please help

Answers

Answer:

x = 2

Step-by-step explanation:

y=2x so

x=-2x+6

add 2x to both sides

3x=6

divide both sides by 3

x=2

the answer would be x =2

In ΔPQR, r = 4.9 cm, ∠R=21° and ∠P=104°. Find the length of p, to the nearest 10th of a centimeter.

Answers

Answer:

Step-by-step explanation:

The answer is the length of p, to the nearest 10th of a centimeter is 13.3 cm .

What is the law of sines ?

he Law of Sines (or Sine Rule) is very useful for solving triangles.

According to the law ,

When we divide side a by the sine of angle A

it is equal to side b divided by the sine of angle B

and also equal to side c divided by the sine of angle C

[tex]\rm \dfrac{a}{sinA} = \dfrac{b}{sinB} = \dfrac{c}{sinC}[/tex]

It is given that in Δ PQR

r = 4.9 cm

angle R = 21

angle P =104

Length of p needs to be found

Therefore by using above equation

[tex]\rm \dfrac{r}{sinR} = \dfrac{p}{sinP}[/tex]

[tex]\rm \dfrac{4.9}{sin21^{0}} = \dfrac{p}{sin104^{0}}[/tex]

p= 13.3 cm

Therefore the length of p, to the nearest 10th of a centimeter is 13.3 cm .

To know more about law of sines

https://brainly.com/question/17289163

#SPJ2

990*500/600+51-100+10
What is the answer

Answers

Answer:786?

Step-by-step explanation:

Answer: if that is supposed to be a multiplication sign its 786

Step-by-step explanation:

A metal cube has a volume of 27 cm'. It is painted on all its faces. Find the total area of
the faces that are coated with paint.

Answers

Answer:

Area = 54 cm

Step-by-step explanation:

Using the formulas

A=6a2

V=a3

Solving forA

A=6V⅔=6·27⅔≈54

help me -30=5(x+1)−30=5(x+1) x=

Answers

x=-1
i think that’s what it is

Answer:

X=-7

Step-by-step explanation:

Divide then subtract to get x by itself

-30=5(x+1)

Divide each side by 5= -30/5=5(x+1)/5

-30=x+1

-6=x+1

-6-1=x+1-1 Subtract one to get x by itself

-6-1=x+1-1 (cross out both x's.

-6-1=x

Hope this helped

−2x=x^2 minus 6,
Rewrite the equation by completing the square. please answer

Answers

Answer:

[tex](x+1)^{2} -5[/tex]

Step-by-step explanation:

[tex]-2x=x^{2} -6 \\x^{2} +2x-6\\(\frac{b}{2}) ^{2} =(\frac{2}{2}) ^{2} =1^{2} =1\\so, (x^{2} +2x+1)-6+1\\ x^{2} +2x+1=(x+1)^{2} \\-6+1=5\\(x+1)^{2} -5[/tex]

Sorry it took so long

PLEASE HELP

James had a collection of 500 Matchbox cars at the beginning of the summer.

After the summer, James had traded some of his Matchbox cars and now he has only 485 Matchbox cars.

What is the percent decrease of his Matchbox car collection?

Answers

500 - 485 = 15
1% = 5 (b/c 5 x 100 = 500)
check: 5 x 3 = 15

Lost 3%

Kinda a bad explanation but yea

Twinkle Twinkle little star, take the points for yourself.
If you are too happy can you make me
Please answer this question for me.
____________ Its fine if you don't answer, just take the points and have a great day!!

What is the sum of the greatest and least numbers below:

Answers

Answer:

1/6

Step-by-step explanation:

Step 1: Make remaining mixed numbers improper fractions:

8 1/5 = ((8*5)+1)/5 = 41/5

-8 2/5 = -((8*5)+2)/5 = -42/5

Step 2: Order fractions from least to greatest:

-26/3 <- Least

-42/5

-54/7

41/5

53/6 <- Greatest

Step 3: Find the sum of the least and greatest fractions:

Given: -26/3+53/6

Make equivalent fractions: -52/6+53/6

Rearrange: 53/6-52/6

Evaluate: (53-52)/6 = 1/6

Therefore, the sum of the greatest and least numbers is 1/6

8.20= 8 1/5. -2 2/5= -8.4. -26/3= -8.6. -54/7=- 7.71. 53/6=8.8
53/6, 8 2/5 ,8 1/5, -54/7, -2 2/5, -26/3
I’m so sorry if I got it wrong

What is -3x+12y=24 in standard form

Answers

So standard form is Ax+By=C
Since the problem is already in that form you don’t need to switch it around however A has to be more than 0 (so positive). Divide the equation by -3 to get the answer x-4y=-8

which real-world story is represented by the addition problem (- 2 1/2) + (- 3 1/4) = -5 3/4?

Answers

Answer:

come to instgram i will help u

thegoodboy__._

Please help me with this! I will mark as brainliest!!!

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The equation is: x - 9 = -3

In EFG, EG is extended through point G to point H, m< EFG (2x+1),
m

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Answer:

1

Step-by-step explanation:

Answer:x+19=(6)+19=25

Step-by-step explanation:

3(y+2)=30 one solution

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The answer to this problem is 6

how can you tell that the slope of the line through (2,2) and (-3,5) is negative without calculating

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The y values decrease as the x values increase. If you picture the points in your head, you’ll see that (2,2) is to the right and lower than (-3,5), creating a negative slope.

answer it plz it ain't hard so

Answers

Answer:

(4,5)

Step-by-step explanation:

If it's not hard then why do you need help????

Answer:

C). (4,5)

Step-by-step explanation:

Basically crawl before you walk, x axis then y axis.

solve system by elimination
6.
2x + 5y = 14
4x + 2 y = -4

Answers

Answer:

x=−3 and y=4

Step-by-step explanation:

Multiply the first equation by -2,and multiply the second equation by 1.

−2(2x+5y=14)

1(4x+2y=−4)

Becomes:

−4x−10y=−28

4x+2y=−4

Add these equations to eliminate x:

−8y=−32

Then solve−8y=−32for y:

−8y=−32

−8y

−8

=

−32

−8

(Divide both sides by -8)

y=4

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

2x+5y=14

Substitute4foryin2x+5y=14:

2x+(5)(4)=14

2x+20=14(Simplify both sides of the equation)

2x+20+−20=14+−20(Add -20 to both sides)

2x=−6

2x

2

=

−6

2

(Divide both sides by 2)

x=−3

Step by step:
Multiply the first one by -2 to be able to eliminate the x’s
-4x-10y=-28
Add them
-4x-10y=-28
4x+2y=-4
——————-
X’s cancel out your left with
-8y=-32
Divide by -8 to get y alone
Y= 4
Plug in for y to get x
4x+2(4)=-4
4x+8=-4
-8 -8
————-
4x=-12
x=-3
(-3,4)

Which equation is graphed?

Answers

Answer: I think it is b

Explanation:

Please Help me!
If the sales-tax rate is 8%, how much will the total cost of a purchase of $200 be?

Answers

Answer:216

Step-by-step explanation:

because 200 times 8 percent = 16 so then you add 16 too 200 and get 216.

plz help The link under is the question I need help today

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Answer:

the fourth one: 36.25

Step-by-step explanation:

the 3 in 20.342 is in the tenths place.

0.3*100=30

the three in 36.25 is in the tens place

✨✨Easy points for those who are good at math✨✨

Answers

Answer:

The answer is c

Step-by-step explanation:

What is the answer to (1/2)x-1-4

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Answer: X = 2

Step-by-step explanation:

Subtract the following polynomials vertically. (8x+5y+4)-(3x-9y-5)

Answers

Answer:

The answer is 5x + 14y + 9

Step-by-step explanation:

Simplify the expression.

~Hoped this helped~

topic:maths - algebra pls help ! :-(

Answers

Answer:

24

Step-by-step explanation:

Answer:24

Step-by-step explanation:

9(4) + 4(-3)

36 + -12

36 - 12 = 24

Parallelograms (5x+4). 59

Answers

Answer:

59 = (5x + 4)

x = 11

Step-by-step explanation:

59 = (5x + 4)

5x + 4 = 59

5x = 59 - 4

5x = 55

x = 55/5

x = 11

i need help w/ math due asap plzz

Answers

Answer:

The answer is D

Step-by-step explanation:

You multiply by 2 19 x 2 = 38 38 x 2 = 76 76 x 2 = 152

then 152 x 2 = D 304

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