whats the answer to this math equation

Answer:

yes, it is a negative number.

Step-by-step explanation:

example: -6 - 6 = -12

Answer: It is a negative number because when you subtract a positive number, you are essentially adding another negative number.

Step-by-step explanation:

Answer:

130

Step-by-step explanation:

Have a nice day :)))

Answer:

You can use proportions by settling the ratio from the sample equal to the ratio from the population.

Explanation:

For Example is 3 out of 50 phones in a sample are defective, then an estimated 60 out of 1000 phones in a population are defective. this can be found by solving the proportion 3/50=x/1000 where x is the estimated number of defective phones in the population.

Answer:

Proportions which would be equal to the ratio from the sample equal to the ratio from the population.

Step-by-step explanation:

I find that Proportions are the easiest way.

Answer:

gonna solve fore perimeter and area

P = 12 + 3 + 3 + 9 + 9 + 4 + 4 + 4 = 48cm

P = 48 cm

For area or A it is

A = (12*3) + (4*9) = 72 cm^2

Step-by-step explanation:

use deductive reasoning to determine the missing side lengths, and then solve by splitting the figuring into multiple rectangles

Answer:48 is the perimeter

Step-by-step explanation: 12 + 3 + 3 + 9 + 9 + 4 + 4 + 4

2 3s because there are 2 sides to the top shape and i got the 3rd 4 by using the top 12 and subtracting 8 because there are 4s on both sides of the rectangle that hangs down

Answer:

115.9 with a repeating 9 or 116/1 in fraction form

Step-by-step explanation:

4 5/6 as a decimal is 4.83 repeating 3. Multiply that by 24 and you get 115.9 repeating 9. (You can write that as 9 with a dash above it.)

Answer:

116

Step-by-step explanation:

Hope this helps! Pls give brainliest!

I can only answer 5, use my answer to help find 6.
Answer:

The volume is 259,824,773,000

Step-by-step explanation:

r, or radius is half of the diameter. So we are left with (4 * pi (also known as 3.14159)* 3958.5^3)/3

(7.7947432 * 10 ^ 11) / 3 = 779,474,320,000 / 3

Which is equal to 259,824,773,000 as the volume.

I hope this solves 5 and helps you with 6.

Answer:

5

Step-by-step explanation:

20 / a

20 / 4

5

Answer:

5

Step-by-step explanation:

20 ÷ a

20 ÷ 4 = 5

Hope this helps!

I think the answer is B because it says that the new test score is 12 points more so you would add 12 + 12

Answer:

9

Step-by-step explanation:

substitute

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

multiply

2+10-3

add and subtract

9

hope this helps

brainliest appreciated!!

:)

Answer: 32 people take the bus to the city park.

Step-by-step explanation: 40% of 80 is 32.

(0.40 x 80 = 32.)

Answer:

35 people took a bus to city park

Step-by-step explanation:

Answer:

Step-by-step explanation:

170=40x+50

170=40x+50                              subtract 50

120=40x                                     divide by 40

3=x

Answer:

50+40x2=130

Step-by-step explanation:

the family can have 2 cell phones

I solved by finding the cost of the phone companys charge then the cost of 2 lines

Answer:

the equation is

Step-by-step explanation:

x + 3=3x4

The volume of the cylinder is [tex]V = \pi r^{2} h[/tex]

Known Facts:

Lets plug it into the equation

   [tex]V = \pi *8^{2} *17 = 3418.1[/tex] cubic feet

Thus the volume is 3418.1 cubic feet

Hope that helps!

The volume of the cylinder is 

V = \pi r^{2} hV=πr2h

facts:

r = 8ft

h = 17ft

equation:

   V = \pi *8^{2} *17 = 3418.1V=π∗82∗17=

3418.1 cubic feet

Thus the volume is 

3418.1 cubic feet

Answer:

Middle School In Favor: 25%

Middle School Not in Favor: 75%

High School In Favor 20%

High School Not In Favor 80%

Step-by-step explanation:

For the middle school in favor, we need to find the percent, which is 50 out of 200, so its 1/4, 25%

So the rest of the middle school is not in favor, which is 75%

High school is 60 not in favor, so we need to find the percentage. So 60 out is 300 is 20%

And we just subtract 20 from 100 which leaves us with 80

Hii.

I'm here to help!

First, we need to work with parenthese. Rembering "Pemdas"

Multiply 7 and 8 to get 56.

56y− 2x/5

To add or subtract expressions, expand them to make their denominators the same. Multiply 56y times   5/5

5x56y

------------    -2x/5

    5

Since  5x56y over 5  and 2x over 5 have the same denominator, subtract them by subtracting their numerators.

5 x 56y  -2x  over 5

Do the multiplications in 5×56y−2x.

280y−2x over 5

7×8y−(2x÷5)

Factor out  

5

2

.

5

2(140y−x)

Hope this helps :D

Answer:

-2/5x + 56y

Step-by-step explanation:

(7)(8)y - 2x/5

= 56y + -2/5x

Hope I helped :)

Answer:

17 minutes

Step-by-step explanation:

Answer:

20y + 5

Step-by-step explanation:

6y + 2 + 3 + 14y

20y + 2 + 3

20y + 5

Have an amazing day!

PLEASE MARK BRAINLIEST!

Answer:

Added Like Terms: 20y + 5

Equivalent Expression: 12y + 8y + 4 + 1

Explained:

Add like terms. Both 6y and 14y have a variable of y, so they can be added.

6y + 14y = 20y

Next, add the next set of like terms. 2 and 3 both don't have a variable, so you can add em'.

2 + 3 = 5

There are no more like terms to add since 20y has a variable and 5 doesn't, leaving you with the answer 20y + 5.

As for the equivalent expression, I just created another expression that equals 20y + 5.

Answer:

(x=9)

largest angle= 8x+8(ans=80)

Step-by-step explanation:

first of all we need to find x

we write this as an equation

8x+8+5x-1+5x+11=180

18x+18=180

18x=180-18

18x=162

x=162/18

x=9

Now the question is to find the largest angle

so

we just find the orginal value for all the angles by replacing the x with 9

1. 8x + 8

   = 8x9+8

    = 80

2. 5x - 1

  =  5 x 9 - 1

   = 44

3. 5x+11

  = 5 x 9 + 11

   = 56

Hence the largest angle is 80 ( 8x+8)

Hope this helped.

Answer:

im only in grade 7 ;-;

Step-by-step explanation:

Answer:

Draw an open circle at 6.

Shade all numbers less than 6.

Shade all numbers to the left of 6.

Step-by-step explanation:

I hope this helps!

Answer:

a c and f

Step-by-step explanation:

Answer:

The unit rate in minutes per miles be 8.02 minutes per miles .

Step-by-step explanation:

Step 1. 26.2 miles/ 210 mins  = x miles / 1min

1 * 26.2 / 210 = .12 miles / min

Step 2. 26.2. 0.13

÷210.

210. 1

(The amount miles ran in 1 minute is 0.13 miles.)

Step 3. 26.2/210= .125 miles per minute

210/26.2= 8.02 minutes per mile

Step 4. 1) Cross multiply. (26.2 = 210x)

2) Divide 210 from each side. (26.2/210 = .1247619048  ,  210x/210 = x)

3) Round to the nearest 100th. (.12)

4) X=.12

5) .12 miles ran per minute

These both rates are not proportional because if 8 mile in 10 minutes and 20 miles in 30 minutes .. So 10 times 3 equals 30 minutes but if we multiply 8 times 3 is equal to 24. So there are not proportional.. I hope this helped

Answer:

if i did my math right it should be 216-(6.2*x) 191-(4.9*x)

Step-by-step explanation:

216-(6.2*x) 191-(4.9*x) and if you go up the line from 0 from the first and second equation you will end up at 8 and 5 so Ahab will have to stick to his plans for 8 months/but if it means how much if he needs to reach near or exactly 191 pounds then it would be only 216-(6.2*x) for the equation and the answer would be 4 months

Answer:

i don't know that one is hard sorry

Step-by-step explanation:

Answer:

16/14 learn your fractions.

Answer:

he made money on 12 of them but he sold 50

Answer:

the answer is  x<-1

Step-by-step explanation:

-6x + 22 1/4 +2x> 9 3/4+ 16 1/2

-4x +89/4 >(9+26) + (3/4+1/2)

-4x + 89/4 > 25+ (3/4 + 1/2)

-4x + 89/4 >25 +1 1/4

-4x 89/4 > 25 + 1 + 1/4

-4x + 89/4 > 26+ 1/4

-4x + 89/4 > 26 1/4

-4x + 89/4 > 105/4

-4x > 105/ 4 -89/4

-4x> 4

x <-1

Answer:

The net changed 2 floors down

Step-by-step explanation:

That should be your answer