7/10=r-(-8/9) please help

Answers

Answer 1

Answer:  -(3/10)

Step-by-step explanation:

7/10=r-(-8/9)

(7/10)=r+(8/9)

(7/10)-(8/9)=r

  r =(7/10)-(8/9)

  r =(7/10)*(9/9)-(8/9)*(10/10)    [Multiply each fraction by another fraction equal to one, but with values that will convert the denominator into the same value]

  r =(63/90)-(80/90)

 r = -(27/90)  or -(3/10)


Related Questions

BRAINLIEST
please help me do these problems I’ve almost finished the whole assignment

Answers

Answer:

13. PS ≈ 28.30

14. ∠CDB ≈ 68.74°

Step-by-step explanation:

13 =========================

We'll start from the right, at ∠R. We have the measurement of the angle, the adjacent side, and we need to find the measurement of the opposite side. Use the tan function in this case. (think soh-cah-toa)

[tex]tan(28)=\frac{x}{39} \\x=39tan(28)[/tex]

or x ≈ 20.74

Now we know that QS is about 20.74. From ∠P this time, we have the angle, the opposite side, and we need the hypotenuse. sin function this time.

[tex]sin(76)=\frac{39tan(28)}{y} \\ysin(76)=39tan(28)\\y=\frac{39tan(28)}{sin(76)}\\[/tex]

or y ≈ 28.30

PS ≈ 28.30

14 ======================

Start from ∠A and use tan.

[tex]tan(47)=\frac{x}{18} \\x=18tan(47)[/tex]

x ≈ 19.30

Then from ∠CDB, we'll use inverse cos.

[tex]cos^{-1}(\frac{7}{18tan(47)} )= y[/tex]

y ≈ 68.74°

∠CDB ≈ 68.74°

=======================

I'm pretty highly confident this is correct, but it's been a long time since I've done this and the irrational numbers seem strange. If the rest of the assignment was like that though, it should be fine.

What is the range
of 98, 99, 100,
90, 98, 100?

Answers

Answer:

10

Step-by-step explanation:

Increasing order:-

90,98,98,99,100,100

Range = Highest term - Lowest term

Range = 100 - 90

Range = 10

Hence,

Range of the given term is 10

Answer:

10

Step-by-step explanation:

The data set in ascending order:

90, 98, 98, 99, 100

It has min = 90, max = 100

The range is the difference between min and max:

100 - 90 = 10

A line passes through (0, 2) and has a slope of 1/3.
What is the equation of the line in slope-intercept form?

A) y=1/3x+2
B) y=1/3x−2
C) y=−1/3x+2

Answers

Answer:

A)

y=1/3x +2

Step-by-step explanation:

equation of line is y=mx+c

so here the points are (0,2) and the gradient,m is 1/3

the y-intercept, c is 2

as when substituting the result is 2 for the y-intercept

substituting:

y=mx+c (0,2)

2=1/3 (0) +c

c= 2

The equation of the line is y=1/3x +2 if a line passes through (0, 2) and has a slope of 1/3 option (A) is correct.

What is a straight line?

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

The slope-intercept form of the line is:

y=mx+c

The points are (0,2) and the gradient,m is 1/3

c= 2

y = x/2 + 2

Thus, the equation of the line is y=1/3x +2 if a line passes through (0, 2) and has a slope of 1/3 option (A) is correct.

Learn more about the straight line here:

brainly.com/question/3493733

#SPJ2

Alan and Pedro eat today at the same Taqueria, but Alan attends every 20 days and Pedro every 38 when will they meet again?

Answers

Answer:

380 days

Step-by-step explanation:

38 × 1 = 38 38 × 6 = 228    

38 × 2 = 76 38 × 7 = 266

38 × 3 = 114 38 × 8 = 304

38 × 4 = 152 38 × 9 = 342

38 × 5 = 190 38 × 10 = 380

20 × 1 = 20 20 × 6 = 120

20 × 2 = 40 20 × 7 = 140

20 × 3 = 60 20 × 8 = 160

20 × 4 = 80 20 × 9 = 180

20 × 5 = 100 20 × 10 = 200

20 x 10 = 200  20 x 20 = 400

so 20 x 19 = 380

First common number in both times table is 380

Pls help me solve thisss

Answers

Answer:

J (-5,2)

Hope this helps!

Find the sum by first finding the equivalent fractions so both of the fractions have common denominators.

three eighths plus seven sixteenths equals blank
Question 2 options:

thirteen sixteenths

ten twenty fourths

ten sixteenths

four sixteenths

Answers

Answer:

thirteen sixteenths

if you are graphing a system of equations, but the graph doesn't give you enough space to plot the y intercept or slope, what do you do? HELP ASAP

Answers

I’ve been there and I think it most likely means that you’re plotting it wrong. The graph should always have space for you to graph the problem correctly.

Write three different multiplication problems for which the product is 9x2 + 18x. ​

Answers

18 ( 1 + X )

sorry if my answer wrong

1 A function is represented by the following set of
ordered pairs.
{(-3,-13), (0, -7), (3, -1), (6,5)}
Which equation represents the function?
A y = 3x - 7
B y = 6x - 7
c y=2x - 7
Dy=2x-7

Answers

Answer:

  C.  y = 2x -7

Step-by-step explanation:

You can use any pair of points to find the slope. Use the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (-7 -(-13))/(0 -(-3)) = 6/3 = 2

This is the coefficient of x in the slope-intercept form ...

  y = mx +b

The second point (0, -7) tells you that b = -7, so the equation is

  y = 2x -7 . . . . matches C

ANSWER

1 A function is represented by the following set of ordered pairs. {(-3,-13), (0, -7), (3, -1), (6,5)}

Which equation represents the function?

A y = 3x - 7B y = 6x - 7c y=2x - 7Dy=2x-7

Therefore the answer i letter D.

#CarryOnLearning

16 308/1000 as a decimal

Answers

Answer: 16.308

Step-by-step explanation:brainiest please

(-2.05) - (-5)
explain and show how u did this

Answers

Answer:

2.95

Step-by-step explanation:

When we have a problem like this (-2.05)-(-5)

It becomes -2.05+5 because two negatives make a positive, then we add them and we get 2.95

The first side of a triangle of a triangle is 2 longer than the second side. The third side is 5 shorter than twice the second side. The perimeter is 49m. Find the length of each side.

Answers

Answer:

First side is 15 m.

Second side is 13 m.

Third side is 21 m.

Step-by-step explanation:

Let x be the second side of the triangle = x

The first side of a triangle is 2 longer than the second side = x + 2

The third side is 5 shorter than twice the second side. = 2x - 5

Perimeter = 49 m

The formula for finding the perimeter of triangle is:

P = a + b + c

Put the values in the formula

49 = x + x + 2 + 2x - 5

49 = 4x - 3

Use APE or Addition Property of Equality

49 + 3 = 4x

52 = 4x

Use DPE or Division Property of Equality to find the value of x

[tex]\frac{52}{4} = \frac{4x}{4}[/tex]

13 = x

Now put the value of x in the equation

First side( x + 2) = 13 + 2 = 15

Second side( x ) = 13

Third side (2x - 5) =

2(13) - 5

26 - 5

= 21

Susie has 5/8ths of a gallon of tea and needs to fill as many glasses as possible. If each glass holds 2/7ths of a cup, how many glasses can she fill? Hint: One gallon is the same as 16 cups. Pls hurry! Will mark brainliest.

Answers

Answer:

35 glasses

Step-by-step explanation:

Susie has 5/8 gallon = 5/8 * 16 = 10 cups

10 cups ÷ 2/7 cups per glass = 35 glasses

I need help pleaseeeeee

Answers

Answer:

top one is 8x bottom is 9

Step-by-step explanation:

Donna cut away 7.75 meters of rope. Before that, she had 12 meters of rope. How much rope does Donna have left?

Answers

Answer: 4.25 meters of rope

Step-by-step explanation:

Because Donna is losing 7.75 meters of rope from her original 12 meters, this problem can simply be represented as 12 - 7.75, which equals 4.25.

Hope it helps :) and let me know if you want me to elaborate.

Which equation can be simplified to find the inverse of y = 2x2?
1/y=2x^2
y=1/2x^2
-y=1/2x^2
x=2y^2

Answers

Answer:

D. x = 2y²

Step-by-step explanation:

The step in working out the inverse is to swap over the variables.

If we apply same to given equation, we'll have:

y = 2x²  → x = 2y²

It gives us the option D

Answer:

Option D

Step-by-step explanation:

y=2x²

Interchange x and y

x=2y²

Hence option D is correct

y²=x/2y=√x/2

Find the perimeter.Simplify your answer.

Answers

Answer:

24x-6

Step-by-step explanation:

To find the perimeter we have to ads all of our sides to together

8x-3+8x-3+4x+4x

Combine light terms

24x-6

The marked price of a television is Rs 18,500. A dealer allows two successive discounts of 20% and 5%. For how much is the television available to buy

Answers

Answer:

20%Discount price is 14800

Then 5%Discount price of the new price is 14060

14060 is the answer

Two cyclists are 7 miles apart when they begin biking away from each other in
opposite directions. The speed of the first cyclist is 12 miles per hour. The speed of
the second cyclist is b miles per hour greater than the speed of the first cyclist.
How many miles apart are the cyclists in 45 minutes

Answers

Answer:

25

Step-by-step explanation:

Its just 25

PLZ HELP FAST!!
Alson earns a 7% commission on every sale he makes. Let a represent the commission Alson earns.

Damon earns the same commission as Alson. Let d represent the commission Damon earns.

Stefan does not earn the same commission as Alson. Let s represent the commission Stefan earns.

Which statement is true?

d = s
a = s
a = d
a ≠ d

Answers

Answer:

a = d

Step-by-step explanation:

I recommend writing the math out.

a = d ≠ s

d can not be equal to s, the same why a can not be equal to s. a and d are the same. a is equal to d, so it can not be a ≠ d. By process of elimnation, that leaves us with a = d

Can u please help me with this. I’ll make brainliest

Answers

Answer:

number

Step-by-step explanation:

number than number lol sorry i dont know i wish i could help you

can somebody please help me

Answers

Answer:

The probability of drawing the first pink ball is [tex]\frac{3}{10}[/tex].

Because you drew that first pink ball, there are two pink balls left and the total number of balls left is nine.

Hence, the probability of drawing another pink ball after drawing the first pink ball would be:

[tex]\frac{3}{10} *\frac{2}{9} =\frac{1}{15}[/tex]

(C) c varies directly as a and inversely as b. If c= 15 when a = 18 and b = 40, find c when a = 36, and b = 25. = с​

Answers

Answer:

c = 48

Step-by-step explanation:

Given c varies directly as a and inversely as b then the equation relating them is

c = [tex]\frac{ka}{b}[/tex] ← k is the constant of variation

To find k use the condition c = 15 when a = 18 and b = 40 , then

15 = [tex]\frac{18k}{40}[/tex] ( multiply both sides by 40 )

600 = 18k ( divide both sides by 18 )

[tex]\frac{600}{18}[/tex] = k

[tex]\frac{100}{3}[/tex] = k

c = [tex]\frac{100a}{3b}[/tex] ← equation of variation

When a = 36 and b = 25 , then

c = [tex]\frac{100(36)}{3(25)}[/tex] = [tex]\frac{3600}{75}[/tex] = 48

Mark can make 424242 birthday cakes in 777 days.
How many birthday cakes can Mark make in 555 days?
birthday cakes

Answers

It would be 303,030 cakes
424242/777=545
555x546=303,030

HI I REALLY NEED HEP PLEASEE

Answers

Option 2. Both lines have the same slope but start at a different y-intercept so they would be parallel. The other choices are false as well.

The answer is B

Hope this helps

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Answers

q is a number other than 3

Help pleaseee giving brainliest !

Answers

Answer:

the answers you chose are correct.

Step-by-step explanation

b and d

help! Scroll to see image!

Answers

mhorn seems to be correct

Step-by-step explanation:

yshahaa

Describe the steps you used to solve the equation and
find the amount of Carrie's allowance.
Linear
equation: 1/4 a + 1/3 a+ 8 = 22

Answers

Answer: 22

Step-by-step explanation: 1/4a + 1/3a + 8 = 22

Answer:

Sample Response: First, the like terms had to be combined using the lowest common denominator (LCD). Then the subtraction property of equality was used to isolate the variable term. Finally, both sides of the equation were multiplied by the reciprocal of the coefficient to solve for a.

Step-by-step explanation:

Mr pilgrim needs fencing for his turkey coop the perimeter is 240 yards the length is 16 yards longer than the width

Answers

Based on the information given, the length will be 68 yards while the value of the width will be 52 yards.

Width = wLength = w + 16

The calculation will go thus:

Perimeter = 2l + 2w

240 = 2(w + 16) + 2w

240 = 2w + 32 + 2w

240 = 4w + 32

4w = 240 - 32

4w = 208

w = 208/4 = 52

Therefore, the length will be:

= w + 16 = 52 + 16 = 68

Read related link on:

https://brainly.com/question/25748983

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i kneed help pls solve this PleaseHelp! Quick!Read the play.The Beggar and the Kingby Winthrop Parkhurst[A chamber in the palace overlooks a courtyard. The season is midsummer. The windows of the palace are open, and from a distance there comes the sound of a man's voice crying for bread.][THE KING sits in a golden chair. A golden crown is on his head, and he holds in his hand a sceptre which is also of gold. A SERVANT stands by his side, fanning him with an enormous fan of peacock feathers.]THE BEGGAR: (outside) Bread. Bread. Bread. Give me some bread.THE KING: (languidly) Who is that crying in the street for bread?THE SERVANT: (fanning) O king, it is a beggar.THE KING: Why does he cry for bread?THE SERVANT: O king, he cries for bread in order that he may fill his belly.THE KING: I do not like the sound of his voice. It annoys me very much. Send him away.THE SERVANT: (bowing) O king, he has been sent away.THE KING: If that is so, then why do I hear his voice?THE SERVANT: O king, he has been sent away many times, yet each time that he is sent away he returns again, crying louder than he did before.THE KING: He is very unwise to annoy me on such a warm day. He must be punished for his impudence. Use the lash on him.THE SERVANT: O king, it has been done.THE KING: Then bring out the spears.THE SERVANT: O king, the guards have already bloodied their swords many times driving him away from the palace gates. But it is of no avail.THE KING: Then bind him and gag him if necessary. If need be cut out his tongue. I do not like the sound of the fellow's voice. It annoys me very much.THE SERVANT: O king, thy orders were obeyed even yesterday.THE KING: (frowning) No. That cannot be. A beggar cannot cry for bread who has no tongue.THE SERVANT: Behold he canif he has grown another.THE KING: What! Why, men are not given more than one tongue in a lifetime. To have more than one tongue is treason.THE SERVANT: If it is treason to have more than one tongue, O king, then is this beggar surely guilty of treason?THE KING: (pompously) The punishment for treason is death. See to it that the fellow is slain. And do not fan me so languidly. I am very warm.THE SERVANT: (fanning more rapidly) Behold, O great and illustrious king, all thy commands were obeyed even yesterday.THE KING: How! Do not jest with thy king.THE SERVANT: If I jest, then there is truth in a jest. Even yesterday, O king, as I have told thee, the beggar which thou now hearest crying aloud in the street was slain by thy soldiers with a sword.THE KING: Do ghosts eat bread? Forsooth, men who have been slain with a sword do not go about in the streets crying for a piece of bread.THE SERVANT: Forsooth, they do if they are fashioned as this beggar.THE KING: Why, he is but a man. 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