the sum it two numbers is 82.5. Their difference is 12.9. what are the numbers

Answers

Answer 1

Explaination :

Let us assume the unknown two numbers as an variable. Here we are assuming it as a and b.

★ According to the question,

Sum of those assumed two numbers is 82.5.

a + b = 82.5

Also it is given that difference of both the two numbers is 12.9.

a - b = 12.9

From the given information we got two equations,

a + b = 82.5 (Equation No 1)

a - b = 12.9 (Equation No 2)

So we would solve them and get the value of a and b.

From Equation No 2 :

a = 12.9 + b

★ In Equation No 1 :

Substituting the value of a which we got above here,

(12.9 + b) + b = 82.5

12.9 + b + b = 82.5

12.9 + 2b = 82.5

2b = 82.5 - 12.9

2b = 69.6

b = 69.6 / 2

b = 34.8

Therefore,

Value of b is 34.8

Finding out value of a :

a = 12.9 + b

a = 12.9 + 34.8

a = 47.7


Related Questions

ima need help, I'm confused about this depth stuff ​

Answers

[tex]v (total)= v(r \: p \: ) + v(c)[/tex]

[tex]v(t) = lwh + \pi {r}^{2} h[/tex]

[tex]v(t) =( 18 \times 10 \times 5 )+( 3.14 \times {5}^{2} \times 5) \\ [/tex]

[tex]v(t) = 900 + 392.50[/tex]

[tex]v(t) = 1292.50 \: \: \: {ft}^{3} [/tex]

Depth is also referred as height.

Volume of the rectangular part = l b h

= 18 × 10 × 5

= 900 ft³

Volume of two semi circular parts = 4 / 3 π r³

= 4 / 3 × 5 × 5 × 5 × π

= 523.8 ft³

Total Volume of the figure = 1423.8 ft³

18. a gamer played four games in 6 hours. she played each game for the same amount of time. how much time did she play each game on

a.2/3 hours
b. 1 hour
c. 1 1/2 hour
d. 2 hours

Answers

Answer:

c. 1 1/2 hours

Step-by-step explanation:

6 hours / 4 games = 1 1/2 hours per game

Another way to think of it:

1 hour = 60 minutes

6 hours = 6 hours x 60 minutes per hour = 360 minutes

360 minutes / 4 games = 90 minutes per game

90 minutes per game / 60 minutes per hour = 1.5 hours

1.5 hours is the same as 1 1/2 hours

So, the answer is c. 1 1/2 hours

Determine the solution to the system of equations graphed below and explain your reasoning complete sentences: glx) = -2x - 3 f(x) - kx+1l-4

Answers

Answer:

I hope it helps you

PLEASE MARK ME BRAINLIEST

Answer these?
3. John bought 2 kg apples, 4 kg mangoes, 1 kg pears and put them in his bag. Find the total weight of the fruits in his bag.

4. Three brothers weigh 30 kg, 25 kg and 45 kg. Find their total weight.

5. A man weighs 72 kg and his wife weighs 59 kg. How much does the man weigh more than his wife?

6. Papaya sells at $16 per kg. Find the cost of 4 kg of these papayas.

7. A bag of wheat weighs 25 kg. Find the total weight of 8 such bags.

Answers

Answer:

3. 7kg

4. 100kg

5. 13kg more

6. $64

7. 200kg

Please answer urgent!

Answers

Answers: A, B, E

Reason:

Triangles A, B and E all have the angles 68 and 79 with a 3 unit side sandwiched between them. We can use the angle side angle (ASA) congruence theorem to prove those three triangles are identical copies of each other. They are rotated, reflected and shifted versions of one another. These tranformations are known as rigid transformations or isometries.

On the other hand, we can rule out choice C because the side between the angles is not 3 units long (even though the angles do match up). The same goes for choice D.

Explain how to obtain the equation 3x=6 from the given system.

-x+y=-3

6x-3y=15
PLEASE HELP ASAP

Answers

Answer:

Step-by-step explanation:

What is the equation?

Answers

Answer:

[tex]\displaystyle 5x + 6y = 72\:or\:y = -\frac{5}{6}x + 12[/tex]

Step-by-step explanation:

Perpendicular equations have OPPOCITE MULTIPLICATIVE INVERCE RATE OF CHANGES [SLOPES], so 1⅕ becomes −⅚, and we move forward with plugging the information into the Slope-Intercept formula:

[tex]\displaystyle -8 = -\frac{5}{6}[24] + b \hookrightarrow -8 = -20 + b; 12 = b \\ \\ \boxed{y = -\frac{5}{6}x + 12}[/tex]

To write this in Linear Standard Form, perfourm he following:

y = −⅚x + 12

+ ⅚x + ⅚x

___________

⅚x + y = 12 [We cannot leave the equation this way, so multiply the equation by the denominatour to eradicate the fraction.]

6[⅚x + y = 12]

[tex]\displaystyle \boxed{5x + 6y = 72}[/tex]

I am joyous to assist you at any time.

Three local stores are each selling their videos game consoles for the same price the table below shows how many consoles have been sold at each of the stores and the total sales dollars for the consoles.

Answers

Applying proportions, it is found that the discounted price of each console at store B is given by:

B. $210.80.

What is a proportion?

A proportion is a fraction of a total amount.

In this problem, at store B, 15 consoles sold for a total of $3,720, hence the price per console is of:

P = 3720/15 = $248.

A discount of 15% is applied, which means that the new price is 85% of the original price, hence:

P = 0.85 x 248 = $210.8.

Which means that option B is correct.

More can be learned about proportions at https://brainly.com/question/24372153

which expression entered into a graphing calculator will return the probability that a data value in a normal distribution is between a z score of -1.99 and a z score of 0.18

Answers

The expression that returns the probability that a data value in a normal distribution is between a z- score of -0.18 and a z-score of 1.99 is (d) normalcdf(-0.18, 1.99)

How to determine the expression?

To calculate the probability between two z-scores is to calculate the area between the z-scores.

This is done using the following syntax:

normalcdf(lower bound, upper bound)

From the question, the lower and the upper z-scores are -0.18 and 1.99

So, the formula would be normalcdf(-0.18, 1.99)

Hence, the expression is (d)

Read more about normal distribution at:

https://brainly.com/question/25991460

“A number decreased by 16 is

Answers

Answer:

Step-by-step explanation:

A number decreased by 16 is − 3

hope this helps.

mark me brainliest please.

Help help help help math

Answers

Multiple both values inside parathyroid by the value outside.

6x+18

maths j2 a road is 300km long is drawn to a scale of 1cm represents 50km . what is it's length on drawing?​

Answers

Answer: 6cm.

Step-by-step explanation:

Strategy 1 (in-head thinking)

300 divided by 50 would be 6, multiply 6 by 1 and get 6cm.

Strategy 2 (proportions)

First, set up a proportion.

We know that 1cm = 50km, so we put them on a fraction (whichever is denominator/numerator doesn’t affect the process)

However, we don’t know how much cm equals 300km, so we turn that into a variable, in this case x.

1cm       x cm

———   ———

50km  300km

To solve a proportion, go diagonal to where the variables have already been filled in. You can’t so 50km and x cm, as you don’t know x. You can do 300km however. To start, multiply 1 and 300, to which you get 300. Then, multiply 300 by the 50km and you’ll get x. That’ll equal to 6.

So in conclusion, your answer is 6.

PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!!!!

Answers

Answer:

4,000

Step-by-step explanation:

The value goes down by around 2,000 every year and 4,00 is the closest answer of any of them.

In FGH,FH =7 ft,FG=12 ft and m

Answers

Answer:1) In Δ FGH,

FH=7 ft, FG=12 ft,

∠F=70 degrees

By "Law of cosines":

So,By applying Law of Sines , we get that

Hence, Option 'D' is correct.

2) In Δ XYZ,

XY=14, ∠Y=22°, and XZ=26

By using "Law of sines":

so, X = 147° , Y = 22° , Z = 11.6°

Step-by-step explanation:

Hi there please help me on this

Answers

Answer:

[tex]\tan(X)=\dfrac{77}{36}[/tex]

Step-by-step explanation:

First we need to find the length of side WX.

To do this, use Pythagoras' Theorem:  [tex]a^2+b^2=c^2[/tex]

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

[tex]\implies WX^2+77^2=85^2[/tex]

[tex]\implies WX^2=85^2-77^2[/tex]

[tex]\implies WX=\sqrt{85^2-77^2}[/tex]

[tex]\implies WX=36[/tex]

Now use the Tan trig ratio:

[tex]\tan(x)=\sf \dfrac{O}{A}[/tex]

where:

[tex]x[/tex] is the angleO is the side opposite the angleA is the side adjacent the angle

From inspection of the triangle,

[tex]x[/tex] = ∠XO = 77A = WX = 36

Substituting these values into the tan trig formula:

[tex]\implies \tan(X)=\dfrac{77}{36}[/tex]

Therefore, the tangent of ∠X is [tex]\dfrac{77}{36}[/tex]

Answer:

77 / 36

Step-by-step explanation:

Finding the adjacent side

WX² = VX² - VW² [Pythagorean Theorem]WX² = (85)² - (77)²WX² = 7225 - 2929WX = √1296WX = 36

Tangent of ∠X

Opposite side / Adjacent sideWX / VW77 / 36

write down 3 numbers that are between 1.9 and 2

Answers

Answer:

1.91, 1.92, 1.93

Step-by-step explanation:

They are all between 1.9 and 2

John types 90 words in 2 minutes. Enter the number of words John types in 4 minutes at this rate

Answers

Answer:

360

Step-by-step explanation:

9x4=36 add the zero you didn't use

If vector A=xz³î-2x²yj+2yz⁴k find CURL A at the point [1, -1, 1]​

Answers

Given that

[tex]\vec A = xz^3 \, \vec\imath - 2x^2 y \, \vec\jmath + 2yz^4 \, \vec k[/tex]

its curl is

[tex]\displaystyle \nabla\times\vec A = \left(\frac{\partial\left(2yz^4\right)}{\partial y} - \frac{\partial\left(-2x^2y\right)}{\partial z}\right) \, \vec\imath - \left(\frac{\partial\left(2yz^4\right)}{\partial x} - \frac{\partial\left(xz^3\right)}{\partial z}\right) \, \vec\jmath \\ ~~~~~~~~~~~~ + \left(\frac{\partial\left(-2x^2y\right)}{\partial x} - \frac{\partial\left(xz^3\right)}{\partial y}\right) \, \vec k[/tex]

[tex]\nabla\times\vec A = 2z^4 \, \vec\imath + 3xz^2 \, \vec\jmath - 4xy \, \vec k[/tex]

so that at the point (1, -1, 1), the curl is

[tex]\nabla\times\vec A \bigg|_{(x,y,z)=(1,-1,1)} = \boxed{2 \, \vec\imath + 3 \, \vec\jmath + 4 \, \vec k}[/tex]

Please help ASAP!!!! 20 PTS
Marko is playing the video game Fort Attack. The purpose of the game is to shoot invading bandits that are trying to breach the fort's circular wall, and Marko must provide the angle at which the cannon should turn in order to shoot the attacking bandits. The bandit is attacking as pictured in the figure below:

The unit circle is shown. There is an angle 30 degrees counterclockwise from the positive y axis. An image of a bandit is shown at the point of intersection between the angle and unit circle.

What is the angle of fire in standard position on the unit circle in both degrees and radians?

120°; pi over 6 radians
120°; 2 pi over 3 radians
30°; pi over 3 radians
30°; 2 pi over 3 radians

Answers

The angle of fire in the standard position will be B. 120°; 2 pi over 3 radians.

How to calculate the angle?

It should be noted that the image shows the shooting angles arrangements. Also, π = 180°.

In this case, the value of the angle will be:

= 12π/18

= (12 × 180) / 18

= 12 × 10

= 120°

Therefore. the angle of fire in the standard position will be B. 120°; 2 pi over 3 radians.

Learn more about angles on:

https://brainly.com/question/25770607

!!
8 cm
20 cm



O 503 cm
O 4,021 cm
O 1,005 cm?
O 1,407 cm?

Answers

Answer:

1,005cm²

Step-by-step explanation:

First, you need to know the area of a cylinder and also the value of pi.

Area = 2πrh

pi = π = 3.14

r = radius = 80cm

h = height of cylinder = 20

now let's substitute

[tex]2 \times 3.14 \times 80 \times 20 = 1004.9{cm}^{2} [/tex]

but to the nearest square centimetre is.

1005cm²

because the number after the point is more than 4 so we add one to the last number before the point.

How many meters are in 3 kilometers?

A. 30 m
B. 300 m
C. 3,000 m
D. 30,000 m

Answers

Answer:

there are 3000 meters in 3 kilometres

Answer:

C. 3,000 m

Step-by-step explanation:

There are 1,000 meters in one kilometer, so 3 times 1,000. This gets you 3,000.

Complete two expressions that have the same product as 3×5/12

Answers

Answer:

1. 5/(2+2)= 5/4= 1.25

2. 5/(2x2)= 5/4= 1.25

Step-by-step explanation:

3x5/12= 15/12= 1.25

find the dimension of a rectangle whose width is 6 miles less than it width and whose area is 72 square miles.

Answers

12 by 6. 12 times 6 equals 72

a furniture store sells kits that customers use to build cabinets. each kit contains 18 screws and a set number of boards. part B what is the value of x in jarreds equation

Answers

Answer:

x times square then subtract

When will the graph meet the line y=5?

Answers

Answer:

Step-by-step explanation:

The graph of the linear equation cuts the x-axis at (5,0)

Two groups of tourist fly to Japan. It takes the first group 4 hours less than the second to fly
there. If it takes the first group 17 hours, how many hours does it take the second group?

Answers

Answer:

21

Step-by-step explanation:

think about it this way. if the first group takes 17 hours, and the second group takes 4 hours more than the first group, then how long does the second group take?

с
Fruit-O-Rama sells dried pineapple for $0.25 per
ounce Mags spent a total of $2.65 on pineapple.
How many ounces did she buy?
OZ

Answers

Answer:

10.6 oz

Step-by-step explanation:

X × 0.25 = 0.265

x= 2.65/0.25= 10.6 oz

What is the next term of the arithmetic sequence? -3, -7,-11, –15, ​

Answers

Answer:

-19

Step-by-step explanation:

The sequence is going down by 4

-19

The sequence is subtracting 4.
- 15 - 4 = -19

pls help i have the first part done it’s just confusing

Answers

We can represent the pattern by a general sequence:

u(n+1)=8n+2

u(1)=8(10)+2

u(1)=82

u(2)=8(82)+2

u(2)=658

....

Answer:

10:82:658:5266:42130

the temperatures for the first 10 days of January were recoded as follows 22 43 47 8 51 39 35 50 28 and 43 sara is organizing the temperatures to the display on a stem and leaf plot what will the stems be for the display

A. 0, 1, 2, 3, 5, 7, 8, 9
B. 0, 1, 2, 3, 4, 5
C. 0, 2, 3, 4, 5
D. 2, 3, 4, 5

Answers

is there a picture

Please put one so i. can help

.

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