Which property of addition is used in the expression?
0.5+ (0.4+0.8) = (0.5 +0.4) + 0.8

Answer:

what are the answer choises

Step-by-step explanation:

Answer:

2 years = 1252.80 5 years =1332

Step-by-step explanation:

1,200 x 2.2% = 26.4

26.40 x 2 = 52.80

1200 + 52.80 = 1252.80

26.40 x 5 =132

1200 + 132 =1332

Answer:

3

Step-by-step explanation:

24x (1/8) = 3

hope this helps

Answer:

53%

Step-by-step explanation:

Use percent decrease formula.

= 85-40/85

= 45/85

≈ 0.53

= 0.53 * 100%

= 53%

Best of Luck!

Answer:

31.5

Step-by-step explanation:

Ok.

2/3x - 9 = 12

2/3x = 21

x = 21*(3/2)

x = 63/2 = 31.5

Answer:

[tex]x=\frac{63}{2}[/tex]

Step-by-step explanation:

[tex]\frac{2}{3} \times x-9=12[/tex]

Add 9 to both sides:

[tex]\frac{2}{3}x-9+9=12+9\\\frac{2}{3}x=21[/tex]

Multiply both sides by 3/2:

[tex](\frac{3}{2} )\times(\frac{2}{3}x)=(\frac{3}{2} )*(21)\\x=\frac{63}{2}[/tex]

x = 63/2 is your answer.

Answer:

The height above ground level of a rider on a roller coaster over the duration of the ride

Step-by-step explanation:

Answer:

The one that says roller coaster in it.

Step-by-step explanation:

The rest are constant rates so they shouldn't be going up and down on a graph. Since the roller coaster height goes up and down and not straight, it would look like what is shown on the graph.

Answer:

a) The rate of how much rain falls each hour.

b) The y-int in this is (0,0) but which means how much inches of rain there wee before it started raining. (doesn't make sense but that's how it works lol)

c) 4.8 inches.

3/5 x 8 = 4.8 inch

Step-by-step explanation:

Answer:

100.8

I hope this helps:D

Answer:

100.8

Step-by-step explanation:

multiply 4 2.8 and 9 and you get 100.8

Step-by-step explanation:

Your answer is

43,37,31,25

Hope that this is helpful. Tap the crown button, Like & Follow me

Answer:

7.4 % is percent error

Step-by-step explanation:

https://brainly.com/question/21689164

The percent of error is 7.4%. The correct option is B.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Estimated value: 231

Actual value: 215

To find the percentage:

First, the value,

= 231 - 215

= 16

Now,

let n be the percentage.

So,

16 = n x 215/100

n = 1600/215

n = 7.4%

Therefore, 7.4% is the error.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ6

Answer:

Step-by-step explanation:

should be 52%

Answer:

probability of five red marbles or 8 blue Marbles is 13/25...

so this is 52%

Answer:

(6,8)

Step-by-step explanation:

6 to the left and 8 up

Answer:

i think its its 8 squares north but ion know nothing about this.

Step-by-step explanation:

Answer:

A: 4.4    B: 0.875

Step-by-step explanation:

22/5=4.4. We know this because 22/5 simplified is 4 2/5, which converted to a decimal is 4.4.

7/8=0.875. We know this because 7/8 converted to a decimal is 0.875.

Answer:

It is likely that the cafeteria will serve pizza tomorrow

Step-by-step explanation:

Answer:

He will have to work 5 weeks.

Step-by-step explanation:

He needs to earn $200, because he already has $60 saved up. The amount of money he need divided by the amount he earn each week will get you $200.  

Answer:

Step-by-step explanation:

tan47=x/18

x=18tan47

cosCDB=7/x

cosCDB=7/(18tan47)

CDB=arccos(7/(18tan47))

CDB=68.74

Answer:

Yes it is linear

Step-by-step explanation:

Answer:

D. (Jesse with a score of 75)

Step-by-step explanation:

Abby has 15/20 on her quiz, and we can convert that to 0.75. We can turn 0.75 into 75 points in her quiz.

Jesse has 18/30 on her quiz, and we can convert that to 0.60. We can turn 0.60 into 60 points in her quiz.

0.75 > 0.60, so Jesse has more.

Answer:

Jesse has the better score

Answer:

3

Step-by-step explanation:

company g is charging 10 per  hour and in the graph when it is zero hours it shows the base charge which is 25 but in addition when you add an hour if you subtract that amount minus the flat amount 25 you will get 7 and will continue to do so as you continue across the graph 10-7 equals 3

Step-by-step explanation:

25.74- 8.58=x/4.29

Answer:

B

Step-by-step explanation:

A function can be graphed as a straight line, as long as it isn't vertical.

Answer:

x = 1

y = -2

Step-by-step explanation:

We have the system of equations:

-7*x - 8*y = 9

-4*x + 9*y = -22

To solve this type of system, we need to start by isolating one of the variables in one of the equations.

I will isolate the variable x in the first equation to get:

-7*x - 8*y = 9

-7*x = 9 + 8*y

x = (9 + 8*y)/(-7)

x = -(9 + 8*y)/7

Now we can replace this in the other equation to get:

-4*(-(9 + 8*y)/7) + 9*y = -22

And now we can solve this for y, we will get:

(4/7)*(9 + 8*y) + 9*y = -22

(4/7)*9 + y*(9 + 8*(4/7)) = -22

y*(63/7 + 32/7) = -22 - (36/7)

y*(95/7) = -(22*7/7) - (36/7)

y = (7/95)*(-(22*7/7) - (36/7)) = (-22*7 - 36)/95 = -2

y = - 2

Now we can replace this in the equation x = (9 + 8*y)/(-7) to find the value of x:

x = (9 +8*(-2))/(-7) = 1

Then the solution for the system is the pair (1, -2)

That means:

x = 1

y = -2

Answer:

3 hours and 12 minutes

Step-by-step explanation:

8.96 ÷ 2.8= 3.2

I know that 2/10 of 60 is 12

3.2= 3hrs & 12 mins

Might be wrong

Answer:

exact form is 95/8 decimal form 11.875 and mixed number form n= 11 7/8

Answer:

it should be C