You had $21 to spend on two notebooks. After buying them you had $17. How much did each notebook cost?

Answer:

only doing one page you got the other :)

Step-by-step explanation:

Answer:

Yes, her estimate is greater than the actual answer. 120.78/9.9 = 12.2. Since 12.2 (the actual answer) is greater than her estimate of 12, she is correct.

Step-by-step explanation:

See Answer.

Answer:

yo

Step-by-step explanation:

Sari had a good estimate for the problem. But she was not correct in saying that her answer was slightly greater than the actual answer. The rounded dividend, 120, is slightly less than 120.76, and the rounded divisor, 10, is slightly greater than 9.9, so the estimate would be less than the actual quotient.

this was the sample

The system of equation should be C) 250x+150y=550 ; 180x+120y=420

250x+150y=550 ; 180x+120y=420

Find out more information about the  equation here:

https://brainly.com/question/2263981?referrer=searchResults

Answer:

A parameter is defined as a numerical or another measurable factor that conforms a set that defines a given system.

In this case, the only parameter that we have is the number of siblings that each one of the 100 students has.

For example, in a table:

#student        #siblings.

     1                       3

     2                       1

     3                        4

      ...                       ...

In the left side, we have the "number of the student" that does not really matter, because the students are randomly selected, and at the right, we can see our only parameter in this study, that is the number of siblings that each student has.

Answer:You must divide the equation to get the answer

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

I believe what they're doing is A+B=B+A. If not, rule this answer out.

Answer:

A. Yo tambien.

Step-by-step explanation:

There is no explanation. I'm not sure why this was in the math section.

Answer:

no

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

15 divided by 6 equals 2.5

Answer: 10p+9g

Step-by-step explanation:

2(5p+2g)+5g

10p+4g+5g

10p+9g

Answer:

The formula for Pascal's Triangle comes from a relationship that you yourself might be able to see in the coefficients below.

(x + y)0 (x + y)1 (x + y)² (x + y)3 (x + y)41 x + y x² + 2xy + y² x3 + 3x2Y + 3xY2 + y3 x4 + 4x3Y + 6x2Y2 + 4XY3 + Y4

HOPE THIS HELPS!

Answer:

25 $.

Step-by-step explanation:

4 (dollars per game) x 5 (how much games) = 20.

+ 5 $ for one shoe rental.

Robert will pay $25 for 5 games and one shoe rental.

Given that,
Berks Lanes charges $4 per game of bowling and $5 for the shoe rentals.  Roberto paid for 5 games and one shoe rental, how much did he pay in all is to be determined.

In mathematics, it deals with numbers of operations according to the statements.

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

Berks Lanes charges $4 per game of bowling and $5 for the shoe rentals

Let the number of games be x, and number of show use be y
Total cost for the games = 4x  + 5y
Roberto paid for 5 games and one shoe rental implies
x = 5 and y = 1
Now,
Total money paid = 4 * 5 + 5 * 1
                              = 25

Thus, robert will pay $25 for 5 games and one shoe rental.

Learn more about arithmetic here:

brainly.com/question/14753192

#SPJ2

Answer:

I think answer will be -10.

Step-by-step explanation:

when u multiply -1/8*5/1=-5

-1/8*5

-1/8*40/8= 40/8=-5

2/3*5

2/3*-15/3= 30/3=- 10

I think answer will be -10

if it is wrong i am really sorry

Answer:

D. [tex]\frac{10}{15}[/tex] and [tex]\frac{14}{21}[/tex]

Step-by-step explanation:

Proportional ratios are ratios that represent the same relationship. One way to check this is to reduce the ratios, because if they are proportional, they will equal the same thing. Both [tex]\frac{10}{15}[/tex] and [tex]\frac{14}{21}[/tex] simplify to [tex]\frac{2}{3}[/tex].

Hope this helps!!

Answer:

its D

Step-by-step explanation:

if you divide 10/15 its .666 and if you divide 14/21 its .666 so there equal  BRAINLEIST????

Answer:

x=-0.4

Step-by-step explanation:

Start with -25x=10

Divide each side by -25 using the Division Property of Equality to isolate x

x=-0.4

I hope this helps!

Answer:

Value of [tex]x[/tex] :

[tex]x = -\frac{2}{5}[/tex]

Step-by-step explanation:

Solve for [tex]x[/tex] :

[tex]-25x = 10[/tex]

-Take [tex]25x[/tex] and divide it on both sides of the equation:

[tex]\frac{-25x}{-25} = \frac{10}{-25}[/tex]

[tex]x = -\frac{2}{5}[/tex]

So, the value of [tex]x[/tex] is [tex]-\frac{2}{5}[/tex].

Answer:

Answers in the pics

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)

Answer:

[tex](g\cdot f)(0)=4[/tex]

Step-by-step explanation:

So we have the two functions:

[tex]f(x)=5x-4\text{ and } g(x)=x^2-1[/tex]

And we want to find:

[tex](g\cdot f)(0)[/tex]

This is the same as:

[tex]=g(0)\cdot f(0)[/tex]

So, find g(0) and f(0):

g(0):

Substitute 0 into g(x):

[tex]g(0)=(0)^2-1[/tex]

Square:

[tex]g(0)=0-1[/tex]

Subtract:

[tex]g(0)=-1[/tex]

And f(0):

Substitute 0 into f(x):

[tex]f(0)=5(0)-4[/tex]

Multiply:

[tex]f(0)=0-4[/tex]

Subtract:

[tex]f(0)=-4[/tex]

So, our equation is now:

[tex](g\cdot f)(0)=g(0)\cdot f(0)=(-1)\cdot(-4)[/tex]

Multiply:

[tex]=4[/tex]

So, our answer is 4.

And we're done!

Answer:

  32.7 cm

Step-by-step explanation:

For central angle θ in radians, the arc length is given by ...

  s = rθ

The angle between 12 and 5 is 5π/6 radians, and the radius is 25/2 cm, so the arc length is ...

  s = (25/2 cm)(5π/6) = (125/12)π cm ≈ 32.7 cm

The arc length between the markings is about 32.7 cm.

Answer:

So, the relationship with i hours as the indecent variables would be  

Serena can't paint 400 square feet of wall space of wall space in 3.5 hours.

Step-by-step explanation:

Since we have given that

Area that she can paint = 60 square feet

Time taken = half hour = 30 minutes = 0.5 hours

Using "Unitary method, we get that

In 0.5 hours, she can paint = 60 square feet

In 1 hour, she can paint =  

In i hours, she can paint =  

Let the total area she can paint be 'y'.

So, the relationship with i hours as the indecent variables would be

Now,  Can Serena paint 400 square feet of wall space i. 3.5 hours

We put y = 400 and i = 3.5 hours to check whether it is equal or not.

Hence, Serena can't paint 400 square feet of wall space of wall space in 3.5 hours.

Answer:

0.5

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

Answer:18.5m

1m=100cm

Let lenght of streamers in meters be x

Then(1/100)=(x/1850)

(1850/100)=x

18.5m=x

Answer:

25.2X + 3.4 centimeters.

Step-by-step explanation:

The formula for the perimeter of a rectangle

= 2L + 2W

= 2(L + W)

From the question:

Width of a rectangle (W) = 9.7 X - 4.7 centimeters

Length of a rectangle (L) = 2.9 X + 6.4 centimeters

Imputing it into the formula

2(L + W)

2( 9.7X - 4.7 + 2.9X + 6.4)

2 (9.7X + 2.9X - 4.7 + 6.4)

2( 12.6X + 1.7)

= 25.2X + 3.4 centimeters.

Therefore, the perimeter of the rectangle = 25.2X + 3.4 centimeters.

Answer:

[tex]\sqrt{13\\}[/tex] ≈ 3.61

Step-by-step explanation:

Answer: x=14

Step-by-step explanation:

Add 5 to both sides to get the x alone and get your answer.

Answer:

im pretty sure thats the answer

Answer:

-14

Step-by-step explanation:

the pattern is y+5=x, x-10=z

so,

1(+5)=6

6(-10)=-4

-4(+5)=1

1(-10)=-9

-9(+5)=-4

Answer:

The Answer is g.  I may be wrong.

Answer:

-Managing money $$$

-Balancing the checkbook.

-Shopping for the best price.

-Preparing food.

-Figuring out distance, time and cost for travel.

-Understanding loans for cars, trucks, homes, schooling or other purposes.

-Understanding sports (being a player and team statistics)

-Playing music.

These are things we do everyday that use Math.

Mathematics makes our life orderly and prevents chaos. Certain qualities that are nurtured by mathematics are power of reasoning, creativity, abstract or spatial thinking, critical thinking, problem-solving ability and even effective communication skills.

Answer:

Yes, because it has an end.

Step-by-step explanation:

Rational numbers end, while irrational numbers continue on and there is no visible pattern.

Answer:

x=4 i believe

Step-by-step explanation:

1st.      move terms

       -3x+6=-6

2nd.      calculate the difference

       -3x=-12

3rd.     divide both side to get x alone

      x= 4

Answer:

m<1 = 57

Step-by-step explanation:

they are vertical angles

Answer:

C. 57

Step-by-step explanation:

Angles verticle from each other are the same measure.