9/10 + -4/5 help please

Answers

Answer 1

Answer:

1/10

Step-by-step explanation:

First you've got to find common denominators. The common denominator would be 10 since 10 is divisible by 5 and 10. That means you've got the change the denominator of -4/5. Multiply both the numerator and denominator by 2 to grt -8/10.

Then all you have to do is:

9 + -8 1

——— = —

10 10

Khan academy also has some great videos on this if you're confused.

Related Questions

how does cheese spoil?

Answers

Answer:

Microbiological spoilage of cheese is one of the important reasons that render the nutritious and tasty cheese not only inedible but also a potential source of infection. The spoilage may be due to bacteria or fungi. The defect due to contamination may arise from the surface of the cheese showing visual and organoleptic changes or it may be hidden internally.

Answer:

Cheese: It smells like sour milk.

If you spot mold on hard cheese, it's generally safe to cut off the moldy part and eat the rest, since the spores likely will not have spread throughout the cheese. Another sign that cheese has gone bad is a smell or taste of spoiled, sour milk.

John was 40" tall in 2008 and 46" tall in 2010. Dave was 53" tall in 2003 and 70" tall in 2007. Who is growing at
a faster rate? If each person keeps growing at the same rate, how tall can we expect each to be in 2011? Is this
a reasonable expectation?

Answers

Answer:

John is growing at a faster rate.

Step-by-step explanation:

John grew 6 inches in 2 years, while Dave grew 7 inches in 4 years. We can expect John to grow another 3 inches by 2011, making John 49 inches tall in 2011. We can expect Dave to grow about another 7 inches by 2011, since another 4 years has passed. This seems reasonable enough...

very simple
-3x +10 = 5x -8

Answers

10+8=5x+3x
18=8x
X=2,25
Hope it’s right

-2+9=-2(x+3)+8
Is this Infinitely Many Solutions
No solutions
Or One solutions

Answers

Answer:

i think it is many but i am not sure

Step-by-step explanation:

Analyze the following equation.
43 = k/99
Which math step will most efficiently solve the equation?
Add 99 to both sides of the equation.
Subtract 99 from both sides of the equation,
Multiply both sides of the equation by 99.
Divide both sides of the equation by 99.

Answers

Answer:

Multiply both sides by 99

Step-by-step explanation:

k = 4257

What is 16x4 - 100y4 factored completely?
(4x2 + 10y2)(2x - 5y)(2x + 5y)
(2x - 5y)2 (2x + 5y)
16(x2 - 5y2)(x2 + 5y2)
4(2x2 - 5y2)(2x2 + 5y2)

Answers

Answer:

4(2x2-5y2)(2x2+5y2)

Step-by-step explanation:

A museum requires a minimum number of chaperones proportional to the number of students on a field trip.
The museum requires a minimum of 3 chaperones for a field trip with 24 students.
Which of the following could be combinations of values for the students and the minimum number of
chaperones the museum requires?

Choose 2:

A: 72s 9c
B: 16s 2c
C: 60s 6c
D: 45s 5c
E: 40s 8c

S= Students
C= Chaperones

Answers

Answer:

A, and B

Step-by-step explanation:

Answer: A: 72s 9c and C: 60s 6c

Step-by-step explanation: we have so much in common, we argue all the time, you always say im wrong, IM PRETTY SURE IM RIGHT.

Tickets for a high school football game cost $2.50 each if purchased in advance. They cost $3.75 each if bought at the gate on the day of the game. For a particular game , 250 tickets were sold at the gate. If the sales totaled $1750, how many tickets were sold in advance?

Answers

250*3.75=937.5

1750-937.5=812.5

812.5/2.5=325

325 tickets were sold in advance :)

Answer:

1,500 tickets were sold in advance.

Step-by-step explanation:

$ 1,750 - 250 tickets = 1,500 tickets

How much interest would you have to pay for a 30-month loan of
$1,735.53 if the simple interest rate were 7.11%?

Answers

Answer:

$308.49

Step-by-step explanation:

In a group of 28 students, 12 study both Art and Biology.
12 study Biology but not Art.
4 study neither subject.
Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?

Answers

Answer:

100%

Step-by-step explanation:

Use conditional probability:

P(B | A) = P(B and A) / P(A)

P(B | A) = (12/28) / P(A)

We need to find the probability that a student studies art.

P(A or B) = P(A) + P(B) − P(A and B)

24/28 = P(A) + (12+12)/28 − 12/28

P(A) = 12/28

P(B | A) = (12/28) / (12/28)

P(B | A) = 1

What this means is that all of the students who study art also study biology.

Kaitlin has two puppies. Puppy A weighs 12 pounds and is gaining 1.5 pounds each week. Puppy B weighs 18 pounds and is gaining 0.75 pounds each week. How many weeks, x, will it take for the two puppies to weight the same amount?

Answers

Answer:

x = 36 because the LCM of 18 and 12 is 36

pic below........................................

Answers

The answer so gonna be six

Answer:

The answer is -10

Step-by-step explanation:

PEMDAS

6-2^3+(-9+5)x2

6-2^3+(-4)x2

6-8+(-4)x2

6-8+(-8)

6-16

-10

Can someone help me with this? I can't figure it out. The second screenshot is the answers.

Answers

Answer:

its y = mx + b

Step-by-step explanation:

because the b bracket is above 0 its positive. IM no pro so I don't have a long essay like explanation but its b

Answer:

Step-by-step explanation:

I'm pretty sure its y=mx+b

2. A group of four people ate dinner at a restaurant. They divided the bill equally and
each person left a $2 tip. They each paid $14. Write and solve an equation to determine the
amount of the total bill.
How do you write it as an equation?

Answers

Answer:

14 times 2 = t = 28 dollars

Step-by-step explanation:

mrs. Johnson informed her students that their exam will have at most 25 questions.
x>25
x>=25
x<25
x<=25

Answers

Answer:

it would be x>25 because it would either be up to 25 questions or less

(56 - 4) 3
Need help plz

Answers

the answer should be 156.

Answer:

55.........................

Step-by-step explanation:

56-4=52+3= 55

plzzzzzzzzzzzzzzz help me!!!!!!!

look at the screenshot

Answers

Answer:

Step-by-step explanation:

GH bisects ∠FGI.

So, ∠HGI =∠FGH

6x - 17 = 5x - 8 {Add 17 to both sides}

6x = 5x - 8 + 17

6x = 5x + 9 {Subtract 5x form both sides}

6x - 5x = 9

a) x = 9

b) ∠FGH = 5* 9 - 8

= 45 - 8

∠FGH = 37

c) ∠HGI = 6*9 - 17

= 54 - 17

∠HGI = 37

d) ∠FGI = ∠FGH + ∠HGI

= 37 + 37

∠FGI = 74

2x - 1y = -9
y = - 5 - 5x

Answers

Answer:

x = - 7 and y = 30

Step-by-step explanation:

2x - y = -9

subtract 2x from either side

-y = -9 - 2x

divide either side by -1

y = 9 + 2x

Plug in 9 + 2x for y

9 + 2x = -5 - 5x

Add 5 to either side and subtract 2x from either side

14 = -2x

divide either side by -2

-7 = x

plug in -7 for x in one of the equations

y = -5 - ( 5 x -7 )

y = -5 - ( - 35)

y = -5 + 35

y = 30

plug in x and y

30 = -5 - ( 5 x -7)

30 = -5 - (-35)

30 = -5 + 35

30 = 30

Answer:

B. −19

Step-by-step explanation:

Multiply both sides of the equation by y , and then isolate the variable.

y−1y

y−1

10y

−1

−19

Divide both sides by 9

You spend $4.50 on 5 pounds of apples. What is the unit rate in dollars per pound?

Answers

Answer:

$0.90 per pound. Hope this helped :)

Step-by-step explanation:

I had this question trust me. Good luck!

Answer:

$0.90/pound (1st answer choice)

Step-by-step explanation:

Find the unit rate as follows:

$4.50

----------------- = $0.90/pound (1st answer choice)

5 pounds

Please help! 30 points awarded :))

Answers

Answer:

the file I attached should be the answer. Im pretty sure all they are asking for is that you just flip the shape horizontally and then just add the angles and numbers to the shape.

Step-by-step explanation:

just flip the first shape over.

Subtract 8 – (-2).
6
10
-10
-6

help asap

Answers

Answer:

Step-by-step explanation:

I just used the calculator. i hope this helps

Answer:

Step-by-step explanation:

8 - (-2)

when subtracting a negative number make it an addition sign.

8 + 2 = 10

Jon and Lexi are playing a marble game. According to their rules, 4 points are awarded for each red marble collected and 3 points are awarded for each blue marble collected. Which expression represents Jon's total score if he has r red marbles and b blue marbles?

4r − 3b
2r − 3b
4r + 3b
7rb

Answers

Answer:

i believe the answer is 4r - 3b

Answer:

4r+3b

Step-by-step explanation:

4 red awarded = 4r

3 blue awarded = 3b

Score = 4r + 3b

HELP ME PLEASE TYSM

Answers

Answer:

it could be X in this type of case

I believe that the answer is

7:8

-6(x+2)=5(3x+6)

i wasn’t here when we did this

Answers

Answer:

x=-2

Step-by-step explanation:

-6(x+2)=5(3x+6)

-6x-12=15x+30 distribute the outside numbers

-6x=15x+42 add 12 on both sides

-21x = 42 subtract 15x on both sides

x=-2 divide by -21 on both sides.

Camryn enlarged the size of a photo to a height of 18 inches, what is the
new width if it was originally 2 inches tall and 1 inch wide?

Answers

Answer:

I'm think is 17

Step-by-step explanation:the Height of it was 18 and the original height was 2 so subtract 2 from 18 you get 16.So thy are adding 16.So 16+1=17.

Write an absolute value inequality for the recommended air pressure range for each type of ball. Use the variable x for the ball's actual air pressure. Soccerball 12.05 recommended psi tolerance+3.55 Basketball 8.00 average recommended psi tolerance +0.5 volleyball 4.44 average recommended psi tolerance +0.18

Answers

Answer:

For Soccer ball:

x = | 12. 05 + 3.55 |

For basketball:

x = | 8.00 + 0.5 |

For volleyball:

x = | 4.44 + 0.18 |

Step-by-step explanation:

Given the following :

Let x = ball's actual air pressure

_________avg Recommended psi ___tolerance

Soccer ball____ 12. 05 ____________+3.55

Basketball _____8. 00_____________+0.5

Volleyball _____ 4.44 _____________ + 0.18

Actual air pressure = | average recommended psi + tolerance |

Hence ;

For Soccer ball:

x = | 12. 05 + 3.55 |

For basketball:

x = | 8.00 + 0.5 |

For volleyball:

x = | 4.44 + 0.18 |

Can someone figure this out??

Answers

Answer:

x = 6 2/3

Step-by-step explanation:

We can use ratios to solve

x/4 = 15/9

Using cross products

9x = 4*15

9x = 60

Divide each side by 9

x = 60/9

x = 20/3

x = 6 2/3

Help i'm not very good at math...

Answers

Answer:

[tex]m=-7[/tex]

what are the zeros of the function?

Answers

Answer:

-3,-1,2

Step-by-step explanation:

Look where f(x) hits the x-axis

how do i transform 5/8 in porcent

Answers

Answer:

62.5%

Step-by-step explanation:

that's the awnser 62.5% your welcome

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