The sum of two number is 18. 5 times the first number subtracted from 4/7bof the second number is 14. Find the number

Answers

Answer 1

Answer:

Required numbers are x = -0.5 and y =18.6

Step-by-step explanation:

Let the two numbers be x and y

Their sum is 18 i.e x+y= 18

4/7y-5x= 14

We need to find the numbers x and y

Solving both equations to find value of x and y

[tex]x+y= 18 ----(1)\\\frac{4}{7} y-5x= 14 ------(2)[/tex]

From equation 1 we can find value of x and put in equation 2 i.e

x=18-y

Putting the value of x in equation 2

[tex]\frac{4}{7}y-5(18-y)=14\\Solving:\\\\\frac{4}{7}y-90+5y=14\\\frac{4y-90*7+5*7y}{7}=14\\ \frac{4y-630+35y}{7}=14\\4y+35y-630=14*7\\39y=98+630\\y=728/39\\y=18.6[/tex]

Now finding x

[tex]x=18-y\\x=18-18.6\\x=-0.5[/tex]

So, Required numbers are x = -0.5 and y =18.6


Related Questions

7.) A company sells cases of candy. The revenue generated by selling x cases is described by the
function R(x) = 60x. The cost to produce the cases is described by the function C(x)
= 35x + 200. The company's profit for selling the cases of candy is the difference between the
revenue and the cost amounts. Which function describes P, the profit function?
A. P(x) = 95x + 200
B. P(x) = 25x + 200
C. P(x) = 25x - 200
D. P(x) = 95x - 200

Answers

Answer:

D

Step-by-step explanation:

Finding angles in measures using triangles

Answers

you can use this for help:

the interior angles of a triangle add up to 180°

So, Angle I + angle H + angle x =180°

60°+56°+x°=180°

116°+x°=180°

X=180-116

X=64°

Can someone please please help me. ?????

Answers

Answer:

#1

x intercept is -5

y intercept is -5

#2

y=8x

Step-by-step explanation:

Help me please!?!?!?!?????

Answers

Answer:

1

Step-by-step explanation:

⚠️⚠️PLEASE READ⚠️⚠️
I want everyone to STOP being so rude and ugly on here this app is to learn and help people and not tear them down! Just because you are behind a screen and no one knows who you are does not mean you can say whatever you want!!! And most importantly STOP being racist I have seen so much of that stop!! Every one needs to be nicer to make the app better!
Have a nice day and smile

Answers

yes!! glad that you support this! keep your head up and keep on smiling! <3

Help me with this please

Answers

Answer:
8x+y

Explanation:
3x+4y+5x-3y
Rearrange the terms so like terms are next to each other
3x+5x+4y-3y
Combine like terms
8x+y

I hope this helps!

Make x the subject of formula x²/a²+y²/b²=1

Answers

Answer:

x = ± [tex]\sqrt{\frac{a^2b^2-a^2y^2}{b^2} }[/tex]

Step-by-step explanation:

Given

[tex]\frac{x^2}{a^2}[/tex] + [tex]\frac{y^2}{b^2}[/tex] = 1

Multiply through by a²b² to clear the fractions

b²x² + a²y² = a²b² ( subtract a²y² from both sides )

b²x² = a²b² - a²y² ( divide both sides by b² )

x² = [tex]\frac{a^2b^2-a^2y^2}{b^2}[/tex] ( take the square root of both sides )

x = ± [tex]\sqrt{\frac{a^2b^2-a^2y^2}{b^2} }[/tex]

In formula x²/a²+y²/b²=1

Value of  x as subject, x = ± [a√(b² - y²)]/b

What is equation?

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side.

Given equation,

x²/a² + y²/b² = 1

moving y²/b² to right side

x²/a² = 1 - y²/b²

multiplying a² on both sides

a². x²/a² = a². 1 - a². y²/b²

Simplifying

x² = a² - a²y²/b²

x = ± √(a² - a²y²/b²)

x = ± a√(1 - y²/b²)

x = ± [a√(b² - y²)]/b

Hence, value of x = ±[a√(b² - y²)]/b in formula x²/a² + y²/b² = 1

Learn more about equation here:

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You exercise 24 hours each month for a year how many hours did you exercise by the end of the year you may be able to do the math mentally thanks to expand notation and the distributive property

Please help answer with the calculation with distribution and without distribution.

Answers

Answer:

288 hours

Step-by-step explanation:

So you have 24 per month. so month can be represented by x.

24x= y

Y is the amount of hours.

One year is 12 months. so plug 12 into x

24(12) =y

y= 288

Please answer for a and b

Answers

Answer:

a

Step-by-step explanation:

a

Answer:

Step-by-step explanation:

a can't be an integer

8/√2 doesn't reduce to an integer. It will give you 4*√2 * √2/√2 = 4√2

-√18/√2 = -√(3*3*2)/√2 = -3(√2)/√2 = -3

At best you will get 4√2 - 3

a = 4√2

b = - 3

Edit

b is correct. the answer for b = -3

a  can't be done giving an integer answer. My best guess is 4 but that is not the correct answer.  You could write it as (4 - 3)√2

My advice to you is to present it to your instructor and see what he/she comes up with.

A lab technician draws a sample of blood. A cubic millimeter of the blood contains 22^3 (the 3 is an exponent) white blood cells and 22^5 (the 5 is an exponent) red blood cells. What is the ratio of white blood cells to red blood cells?

Answers

Answer:

484 : 1

Step-by-step explanation:

We can write white blood cells to:

22^5 = 22 × 22 × 22 × 22 × 22

We can write red blood cells to:

22³ = 22 × 22 × 22

Thus, white : red equals

22 (5 times) : 22 (3 times)

22² : 22^0 = 484 : 1

I hope this helps you :)

The required ratio of white blood cells to red blood cells is 1:484.

What is the Ratio?

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

Here,
A cubic millimeter of blood contains 22³, white blood cells, and 22⁵ red blood cells.

The ratio of white to red blood cell is given as,
Ratio = 22³/22⁵
Ratio = 1 / 484

Thus, the required ratio of white blood cells to red blood cells is 1:484.

Learn more about ratios here:

brainly.com/question/13419413

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In ABC the measure of the largest angle 32 less than 3 time the smallest angle the measure of the middle angle is 8 more than half the measure of the largest angle . What is the measure of the middle angle?

Answers

Answer: The measure of the middle angle = 52°

Step-by-step explanation:

Let x = Smallest angle.

largest angle = [tex]3x-32[/tex]

Middle angle= [tex]8+\dfrac12 (3x-32)[/tex]

Sum of all angles in a triangle is 180 degrees.

So, Smallest angle+ largest angle+ Middle angle = 180°

[tex]\Rightarrow\ x+8+\dfrac12 (3x-32)+3x-32=180\\\\\Rightarrow\ 4x-24+\dfrac{3x}{2}-16=180\\\\\Rightarrow\ \dfrac{2\times4x+3x}{2}-40=180\\\\\Rightarrow\ \dfrac{11x}{2}-40=180\\\\\Rightarrow\ \dfrac{11x}{2}=220\\\\\Rightarrow\ x=\dfrac{220\times2}{11}\\\\\Rightarrow\ x= 40[/tex]

Now , Middle angle= [tex]8+\dfrac12 (3(40)-32)=8+\dfrac12 (120-32)[/tex]

[tex]=8+\dfrac12 (88)\\\\=8+44\\\\=52[/tex]

Hence, the measure of the middle angle = 52°

HELP AGAIN ANSWER THIS QUESTION ​

Answers

Answer:

A

Step-by-step explanation:

What are the stages of asthma? Which is worse?

Answers

Answer:

Mild Intermittent Asthma – No more than 2 Symptoms per week, no problems in between attacks which only last a few hours to at most a few days, less than 2 nighttime episodes per month.

Mild Persistent Asthma – Symptoms happen at least 2 a week but not more than once a day.

Moderate Persistent Asthma – There are symptoms every day and because of that you have to use rescue medication every day as well.

Severe Persistent Asthma – You can’t do that much physical activity and always have to carry around and often use a rescue device.

Step-by-step explanation:

Answer:

bop

Step-by-step explanation:

what is the solution to the inequality? 2 3/5

Answers

Answer: c b< 3 2/15

If we know that 5 cups of flour is used to make 20 biscuits, how many biscuits are made with 15 cups of flour?

Answers

Answer:

60  biscuits

Step-by-step explanation:

It is 60 biscuits  because if 5 cups equals 20 then 15 equals 60 biscuits. If you do the math correctly you should get this answer!

60 biscuits are made with 15 cups of flour.

What is ratio?

Ratio basically compares quantities, that means it shows the value of one quantity with respect to the other quantity.

If a and b are two values, their ratio will be a:b,

Number of biscuits used to make 5 cups of flour = 20.

To find the number of biscuits that are used to make 15 cups of flour.

Use ratio property,

Since, 5 cups of flour = 20 biscuit

⇒ 1 cup of flour = 20 / 5  biscuit = 4 biscuit

Therefore,

15 cups of flour = 15 x 4 = 60 biscuit.

Hence, 15 cups of flour are required to make 60 biscuits.

To learn more about Ratio on :

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An art teacher needs to cut out squares of paper for an art project from a left-over sheet of paper measuring 72 x 104 inches. What size would the biggest possible square be with sides of whole number length?

Answers

Answer:

7488 inches

Step-by-step explanation:

I think that this is the correct answer. The reason is that you have to multiply 72 x 104. I´m not 100% sure.

The required maximum area of the biggest possible square is with sides of a whole number length of 7396 inches².

What is surface area?

The surface area of any shape is the area of the shape that is faced or the Surface area is the amount of area covering the exterior of a 3D shape.

Here,
Area of the leftover sheet = 72  × 104 = 7488 inches²

area of the square = 7488
a² = 7488
a = 86.53

Somehow, for  the biggest possible square to be with sides of whole number length,
The area is given as,
= 86²
= 7396 inches²

Thus, the required maximum area of the biggest possible square be with sides of whole number length  7396 inches².

Learn more about the surface area here:

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Use the distributive property to expand 0.05(50 + 40).

Answers

Answer:

4.5

Step-by-step explanation:

Here's what I found on google about distributive property:

To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

Now for the math-

distribute the numbers-  0.05(50)+0.05(40)

solve-  0.05*50= 2.5

0.05*40= 2

2.5+2= 4.5

Hope this helps

Answer:

0.05(50)+0.05(40)

Step-by-step explanation:

7k - 12 when k=4
( 1/2) X+2y-6 for x=6 & y=5
please help lol im failing ​

Answers

Answer:

Take deep breaths and solve the problem.

Step-by-step explanation:

plz help ill give you brainliest for f
right answer

Answers

5^18
(6x3=18)
Hope this helps

Please help! ! ! ! !

Answers

B is the answer how you do good

Please do for me thank you I am

Answers

4.)    top row: 1,   2,    4,     6,      8,    10

bottom row: 25, 50, 100, 150, 200, 250

5.)    top row: 1,    2,     4,      6,      8,     10

bottom row: 50, 100, 200, 300, 400, 500

ill mark brainlest if right

Answers

I’m not sure but maybe A and C

Answer:

I am super sure its A and C

Hope this helps :D

The point-slope form of the equation of the line that passes through (-5, -1) and (10,-7) is
Y+ 7 = -
-- (x-10). What
is the standard form of the equation for this line?
O 2x - 5y = -15
2x - 5y = -17
2x + 5y = -15
2x + 5y = -17
Save and Exit

Answers

Answer:2x-5y=-15

Step-by-step explanation:

What is the slope of the line that passes through the points (-8, 3) and (-8, 5)?

Answers

Answer:

The slope is undefined

Step-by-step explanation:

Slope (m) = infinity  (undefined)

θ =  π  = 90°

2

distance (d) = 2

ΔX = 0  

ΔY = 2

Please answer correctly !!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!

Answers

Answer:

92 degrees

Step-by-step explanation:

<HEF and <AED are vertical angles.

*15 points* any help would be appreciated plz

Answers

Answer:

70 degrees because all of the angles in a triangle add up to 180 degrees150 degrees because the adjacent angle is 30 degrees110 degrees because the adjacent angle is 70 degrees50 degrees because angle 5 would also have to be 50 in order for all of the angles on that line to be 180 degrees

Step-by-step explanation:

I hope this helps!!!!

standard form of 4 + 3y - 2x = 0​

Answers

Answer: 2x-3y=4

Hope this helps!! :)

Find the cost of kg of apples and the cost of an orange using simultaneous equations method:

Answers

cost of kg of apples = £1.08
cost of an orange = £0.12
hi, the solution is in the pic below. sorry for the messy working!

x-2y = 3
2x + y = 11
What is the value of x

Answers

Answer:

x=5 y=1

Step-by-step explanation:

Like x^2-4x+3=0 or sin(x)=1.

short answer is that x equals 1.

What is the value of 9 + 21 (13 + 5)?
287
395
387
540

Answers

Answer: 387

Step-by-step explanation:

The answer will be 387
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