Nana bought 12 books for $28.50. What was the unit price?

Answer:

$45.36

Step-by-step explanation:

100 + 8 = 108

42/100 X 108 = 45.36

100 + 8 = 108

Answer:

80

Step-by-step explanation:

20 × 4 = 80

Answer:it is five

Step-by-step explanation:just divide 20 by 4

Answer:

14

Step-by-step explanation:

7.5x + 25 = 130

         -25    -25

7.5x = 105  

[tex]\frac{7.5x}{7.5}=\frac{105}{7.5}[/tex]

x = 14

Hence, she must make 14 visits in order to earn a free movie ticket.

Answer:

11-4x

Step-by-step explanation:

Answer:

(1+x)

n

=

n

C

0

+

n

C

1

x+

n

C

2

x

2

+

n

C

3

x

3

+.....

n(1+x)

n−1

=

n

C

1

+2

n

C

2

x+3

n

C

3

x

2

+....

Put x=5

n(1+5)

n−1

=C

1

+2.5C

2

+3.5

2

C

3

+....

=n6

n−1

.

Answer:

x = 119, y =  55

Answer:

x = 119°

y = 55°

Step-by-step explanation:

y + 125 = 180         {linear pair}

       y   = 180 - 125

       y = 55°

Sum of all the angles of quadrilateral = 360

x + 55 + 72 +114 = 360

               x + 241 = 360

                         x = 360 - 241

                        x = 119°

Answer:

116 c

Step-by-step explanation:

Answer:

116 ft²

Step-by-step explanation:

8x8=64

12x2=24

2x6=12

4x4=16

64+24+12+16=116

Answer:

40000 total visitors

Step-by-step explanation:

Let p represent a multiplier. Then the total number of visitors to the park is

4p + 7p + 9p = 40000.

This simplifies to 20p = 40000, so that p = 2000.

Then the number of children who visited is 4p = 8000; the number of women is 7p = 14000, and the number of men is 9p = 18000.

Summing up these results gives us the total number of chidren, women and men who visited the zoo last year: 8000 + 14000 + 18000, or 40000.

Answer:

you didn't post the tables

Answer:

24 ;)

Step-by-step explanation:

have a great day!

Answer:

AOD i think

Step-by-step explanation:

Answer:

angle aob

Step-by-step explanation:

Answer:

the graph is shifted down 3 units

Step-by-step explanation:

5x-3

meaning the original graph of 5x going down three units

Answer:

The graph is 3 units down

Step-by-step explanation:

The equation is 5x-3 meaning 3 units down

Answer:

54

Step-by-step explanation:

You do -18 times -3 which is equal to 54. It is positive because in multiplication and division if you multiply a negative times a negative or divide a negative divided by a negative it will equal a positive.

Hope this helps!

Answer:

i think its b

Step-by-step explanation:

i think its b because his grades are the variable that keeps changing

Answer:

is a lot of them

Step-by-step explanation:

94+1, 95+0, 79+16

Answer: 5(3+16)

Step-by-step explanation:

5x(3+16) = (3+16= 19) = 5 x 19 = 95 which is equivalent to 15 + 80 = 95

brainliest plz

Answer:

x=8

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

6*x-18-(30)=0

STEP 1:

Pulling out like terms

Pull out like factors :

6x - 48  =   6 • (x - 8)

STEP 2:

Equations that are never true:

Solve: 6=0

This equation has no solution.

Solving a Single Variable Equation:

Solve  : x-8 = 0

Add  8  to both sides of the equation :

x = 8

Answer:6x+3-3x

6x-3x= 3x

3x+3=15

-3. -3

3x=12

3. 3

X=4

Step-by-step explanation:

Answer:

im not sure but this is just a guess (please keep it in mind)

Step-by-step explanation:

4+5= 9 marbles all together

9-1= 8

1 in 8? or 1 in 9

this is becuase we dont know if the one that was taken out randomly first wasnt a red or not but then i could be wrong and the fact if it was red or blue in the first place might not even matter. it really depends.

Answer:

- [tex]\frac{1}{14}[/tex]

Step-by-step explanation:

Given

[tex]\frac{1}{2}[/tex] × - [tex]\frac{1}{7}[/tex] ( multiply numerators and denominators together )

= - [tex]\frac{1(1)}{2(7)}[/tex]

= - [tex]\frac{1}{14}[/tex]

Answer: y – 3 = –1/7(x – 3)

Answer: 1250

Step-by-step explanation:

0.25x1000=250

+ 1km/1000 meters

1000+250=1250

Answer:

2500m

Step-by-step explanation:

1.25km is 1250m. 1250 multipled by 2 is 2500m.

Answer:

4[tex]\sqrt{5}[/tex]  

Step-by-step explanation:

Geometric mean is when you multiply the two numbers 4 and 20 and then take the square root of the product.

So 4 x 20 = 80, and the [tex]\sqrt{80}[/tex] = 4[tex]\sqrt{5}[/tex]

However-- that's if you meant finding the geometric mean of 4 and 20 when you said "between"

Answer: I got 14, 9, 0, then 14. but you might want to wait on someone to double check that

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

2.) Infinitely many solutions

3.) No solutions

Step-by-step explanation:

To solve systems of equations graphically, you need to find where they intersect

2.) First put each equation in the form y=mx+b

x-y=6 -> y= x-6

2x=12+2y -> y= x-6

Then, graph each line

Since we have the same equation, the lines are on top of each other so there are infinitely many solutions as they intersect everywhere.

To check, plug a point in from the graph into both equations and you should get 0=0

3.) First put each equation in the form y=mx+b

1/2x-y=4 -> y=1/2x-4

2y=x+6 -> y=1/2x+3

Then, graph each line

Since the lines have the same slope but a different y intercept, the lines are parallel. Therefore, there are no solutions as they do not intersect.

To check your answer, you would one equation as the y in the other equation.

2(1/2x-4)=x+6, then solve for x

Then plug that x into the original equations, and you'll see they are not equal. Hope that helps!

Answer:

I think No

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given function

From the table we get the function g(x), use pairs (1, 10) and (3, 14)

The slope:

The y-intercept:

The function g(x) is found as:

The y- intercept of f (x) is subtracted from the y-intercept of g (x):

Answer:

(the answer is • -4)

...

Answer:

11w-6

Step-by-step explanation

2w+5w-6+4w=7w+4w-6=11w-6