If we subtract half of a number from 20, we get 10, then the number equals; a) -20 b) 60 c) 20 d) -60

Answers

Answer 1

Answer:

Step-by-step explanation:

let the number be x

20-x/2=10

40-x=20

40-20=x

x=20


Related Questions

how many thirds are in 8/3

Answers

The answer to your question is 8.

Answer:

8

Step-by-step explanation:

just take the numerator and thats how many

What is the product?
4^3 4^-3

Answers

Answer:

Im pretty sure its 1

Step-by-step explanation:

If you meant 4^3*4^-3, then yeah, its 1

Can anyone please help I am struggling with math and Noone wants to help me and I want to learn so does anyone understand HOW u factor this

Answers

Answer:

Step-by-step explanation:

256 = 16×16=4×4×4×4 = 4^4

X^4-4^4 = (x^2)^2 - (4^2)^2

Using algebraic identity a^2-b^2 = (a+b)(a-b)

We get (x^2+4^2)(x^2-4^2)

(x^2+4^2)(x+2)(x-2)

A coach in a train can seat exactly 72 people for a trip. The train has 12 such coaches. If the train made 156 trips in full capacity in a year, how many people has it carried in that time?

Answers

72 x 12 = 864

864 x 156 = 134,784

in the capacity of the year, 134784 people have been carried on the train

merry christmas:)

In the word problem,  the train has carried 134,784 people in that year.

How to Solve the Problem?

To calculate the total number of people carried by the train in a year, we need to find the number of people carried in a single trip and then multiply it by the total number of trips made in a year.

Each coach can seat exactly 72 people, and there are 12 coaches on the train. So, in a single trip, the train can carry:

72 (people per coach) * 12 (number of coaches) = 864 people

Now, the train made 156 trips in full capacity in a year. So, the total number of people carried in that time would be:

156 (trips) * 864 (people per trip) = 134,784 people

Therefore, the train has carried 134,784 people in that year.

Learn more about word problem here: https://brainly.com/question/21405634

#SPJ2

simplify and answer
step by step

Answers

See attachment for math work. I did number 3 only.

one baseball team played 24 games throughout their entire season if this baseball team won 6 of those games what percentage did they win

Answers

Answer:

25%

Step-by-step explanation:

As it states in the question there are 24 total games

So the denominator must be 24, The problem also states they won 6 games.

So the fraction of the games they won is 6/24.

But the qustion is not about the fraction, its about the percentage of the games they won.

so you can simplify 6/24 to 1/4 which eqeal to 25%

1/4=25%

So 25% is the answer.

At a wedding reception an equal number of guests were seated at each of three large tables, and 7 late arriving desks were seated at a smaller table. There were 37 guests in all. If n represents the number of guests seated at each of the large tables, what equation represents the situation?

Answers

Answer:

3n+7=37 is the equation to solve how many were at each of the large tables

Richard bought 3 pounds of bananas for $1.50. A banana weighs about 8 ounces and there are 16 ounces in a pound. At this rate, how many bananas can Richard buy for $5?

Answers

Answer:

Richard can buy 20 bananas for $5

Step-by-step explanation:

∵ Richard bought 3 pounds of bananas for $1.50

∵ 1 pound = 16 ounces

3 pounds = 3 × 16 = 48 ounces

→ That means Richard bought 48 ounces for $1.50

The cost 48 ounces = $1.50

∵ A banana weighs about 8 ounces

→ Let us find 48 ounces equal to how many bananas

∵ 48 ÷ 8 = 6

∴ The 48 ounces are the weighs of 6 bananas

The cost of 6 bananas = $1.50

→ To find how many bananas can he buy by $5, use the ratio method

→  Cost  :  Banana

→  1.50   :  6

→  5        :   x

→ By using cross multiplication

1.50 × x = 5 × 6

∴ 1.50x = 30

→ Divide both sides by 1.50

x = 20

∵ x is the number of bananas

Richard can buy 20 bananas for $5

help me i need the answer

Answers

9514 1404 393

Answer:

arc AB = 102°arc ADB = 258°

Step-by-step explanation:

The measure of an arc is the measure of the corresponding central angle.

__

Short arc AB is shown as subtending a central angle of 102°, so the measure of arc AB is 102°.

__

The sum of arc measures in a circle is 360°, so the measure of arc ADB is 258°, the value that adds with 102° to make 360°.

Find f (-9) with the given function rule of f(x)= x-3

Answers

Step-by-step explanation:

We have f(-9) = (-9) - 3 = -12.

Answer:

-12

Step-by-step explanation:

f(9)=-9-3= -12

....

What is 4/5 divided by 3/7?

Answers

Answer:

0.0381 this should be the answer

Answer:

1 whole number 13 over 15

Step-by-step explanation:

4/5÷3/7

4/5*7/3

=1¹³/15

please answer (NOT A MULTIPLE CHOICE ANSWER)

In ΔOPQ, \text{m}\angle O = (6x-14)^{\circ}m∠O=(6x−14) ∘ , \text{m}\angle P =(2x+16)^{\circ}m∠P=(2x+16) ∘ , and \text{m}\angle Q = (2x+8)^{\circ}m∠Q=(2x+8) ∘ . Find \text{m}\angle Q.m∠Q.

Answers

Answer:

you are incorrect it is actually 107 degrees

Step-by-step explanation:

The interval or intervals for witch (x-1)(x-2)>0 is/are

Answers

Here you go! Hope this helps

Genevieve drew a right triangle such that one of its acute angles is five times the measure of the other acute angle. Find the measure of the smallest angle of the triangle.

Answers

Answer:

15°

Step-by-step explanation:

Let the smaller angle be xThen the other angle is 5x

Sum of acute angles equals to 90°

x + 5x = 90°6x = 90°x = 90°/6x = 15°

The smallest angle is 15°

Krystal purchases a total of $120. If a 4% sales tax is added on, how much will her total purchase cost?    ​

Answers

120x.04 =4.8
Add to original 120

Final answer $124.80
It would be $124.80 hope it helped

Which table of ordered pairs represents a proportional relationship? PLEASE HELP MEEEE!!!!!!

20 POINTS I THINK

Answers

the answer is B

your welcome

is 15 m 36 m and 39 m a right triangle?

Answers

Answer:

Yes

Step-by-step explanation:

A right triangle has two sides of the same length and the two same sides create a 90 degree angle.

Hurry hurry help!! I will make u a brainlist

Answers

Answer:

The answer is no

Step-by-step explanation:

PLEASEEEE HELPPPPPPP!!

Answers

Answer:

15.13 cm

Step-by-step explanation:

We are given:

Lateral surface area of a right circular cone : πr√r² + h²

From the question, we know that:

Lateral surface area = 236.64cm²

Radius = 4.75cm

Height = ?

Making h the subject of the formula

h = √[(A/r)² - πr²]/π

h = √[(236.64/4.75)² - π ×4.75²]/π

h = √(2481.9275169 - 70.882184247)/π

h = 15.12975 cm

Approximately to the nearest hundredth = 15.13cm

Triangle A B C is shown. Angle A C B is a right angle. The length of hypotenuse A B is 12 and the length of B C is 6. Angle A B C is 60 degrees and angle B A C is 30 degrees.
What is the value of tan(60°)?
One-half
StartRoot 3 EndRoot
StartFraction StartRoot 3 EndRoot Over 2 EndFraction
StartFraction 1 Over StartRoot 3 EndRoot EndFraction

Answers

Answer: 2 is the answer

Step-by-step explanation:

did it on ed

The value of tan 60° in the triangle ABC is √3

Right angle triangle:

Right angle triangle have one of its angles as 90 degrees. The sides are called hypotenuse, adjacent and opposite side base on the angles.

Therefore,

ΔABC

∠C = 90°

AB = 12

BC = 6

∠B = 60°

∠A = 30°

Therefore,

tan 60° = opposite / adjacent

AC = √12² - 6² = √108 = 6√3

tan 60° = AC / BC

tan 60° = 6√3 / 6

tan 60° = √3

learn more on right angle triangle here: https://brainly.com/question/16627295

Mae Ling earns a weekly salary of $335 plus a 7.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,700 worth of merchandise?

Answers

Answer:

She made $664 during that work week.

Step-by-step explanation:

As Mae Ling earns $ 335 per week plus a commission of 7% with respect to the value of the sales she makes, and in the week she made sales for $ 4,700, to determine how much money she earned in the week the following calculation must be made:

335 + (4,700 x 7/100) = X

335 + (32,900 / 100) = X

335 + 329 = X

664 = X

Therefore, during that week Mae Ling earned $ 664.

On the coordinate plane below, quadrilateral 1 has been transformed to form quadrilateral 2 which if these could be the transformation choose all that are correct

Answers

Answer:

I think the answer is A reflection across the line y=1 and A reflection across the y-axis and then a translation 2 units to the right

Step-by-step explanation:

I’m not sure if this is the answer but I want to help out as much as possible

Answer:b

Step-by-step explanation:

Ashley makes 6 gallons of broth for the restaurant, she serves 30 cups of broth to guests. how many cups of soup are left over?

Answers

Answer:

66 cups

Step-by-step explanation:

16 cups in 1 gallon

16*6 = 96 cups in 6 gallons

96 - 30 = 66

I help pls
I dum dum at math

Answers

Answer:

AB - XY ≅ 0

Step-by-step explanation:

since AB is identical to XY, AB - XY would be approximately 0

Tell whether the relation is a function.

Answers

Answer:

No, it is not a function

Step-by-step explanation:

Here, we want to tell if the relation is a function

For the relation to be a function, each independent variable must be mapped to only a single dependent variable

So what this means is that one term of the independent side must be mapped to one term of the dependent side

From the question, we can see that -10 and -15 were both mapped to -10 which should not be so

This means that the relation is not a function

A map has a scale of 4.5 inches=36 kilometers. If the distance between the two cities is 8.5 inches, what is the actual distance between the cities ​

Answers

9514 1404 393

Answer:

  68 km

Step-by-step explanation:

Actual distance (d) will be proportional to the map distance.

  d/8.5 = 36 km/4.5

  d = (36 km)(8.5/4.5) = 68 km

The actual distance is 68 kilometers.

At a basketball camp there are 10 girls for every five boys. What is the ratio for boys to the total number of campers?​

Answers

5:15 I think is the answer


At a small airport, 3 out of 27
suitcases are misplaced each day. If 810
suitcases are processed, how many suitcaset
would you expect to be misplaced?

Answers

90 suitcases because 3/27 is 1/9 and 1/9 of 810 is 90

ACB=DCE
A=63, C=52, and E=5x

Help please!

Answers

Answer:

the anwer is idcause i didnt workmit ut jus like you

Step-by-step explanation:

Answer:13

Step-by-step explanation:

you add 52+63= 115

115-180=65

5x=115

X=13

A boulder, initially at rest, falls off the top of an overhanging cliff during a storm. The cliff is 96 feet high. How long will it take to hit the road below? Round your answers to the nearest thousandth.
Dropped: h(t)=-16t^2+s

Answers

Answer:

1.94 seconds

Step-by-step explanation:

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