Live earns $9.50 for every two bracelets she sells. The equation y=4.75x ,where x represents the number of bracelets and y represent t total cost in dollar earned.represents this situation.what is the constant of prop rationality? What does the constant of proptionality represent in the contexts of the problem?

Answer:

A.

the subtraction property of equality

Step-by-step explanation:

Answer:

A. the subtraction property of equality

took test its right

Answer:

78 million in scientific notation is 7.8 x .

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

Answer:

A. 2x^2+15

Step-by-step explanation:

Is The Correct Answer!

Answer:

Lindsay used 16/24 yards of fabric and has 5/24 yards left over

Step-by-step explanation:

7/8 - 2/3 = ?

Since both fractions have unlike denominators, we are gonna have to rewrite the fractions so we can subtract. We are gonna find the least common denominators, to be able to subtract.

(7/8 x 3/3) - (2/3 x 8/8) = ?

Complete the multiplication and the equation becomes :

21/24 (7/8) - 16/24 (2/3) = 5/24

Answer:

1:3   (scale to actual)

Step-by-step explanation:

6:18

3:9

1:3

Answer:

like wise. I too agree with your contribution

Answer:

X^2+xy-x+y^2-y-12

Step-by-step explanation:

I think i did it right but if not comment back and i'll try again.

Answer:

(1) 1.2 cm

(2) 200 cm by 250 cm

Step-by-step explanation:

The scaled dimention = (Actual dimension) x (scale factor) ...(i)

The given scale factor =1/50

(1) The actual width of the bedroom door= 60 cm.

So, from equation (i),

the width of the door on the scale drawing= 60 x (1/50)=1.2 cm

(2) The scaled dimension of the bed is 4 cm by 5cm.

So, the scaled width of the bed = 4cm and

the scaled length of the bed = 5cm.

So, from equation (i),

4 cm = (Actual width) x (1/50)

So, Actual width = 50 x 4 cm = 200 cm.

And, 4 cm = (Actual length) x (1/50)

So, Actual width = 50 x 5 cm = 250 cm.

=Hence, the actual measurements of his bed is 200 cm by 250 cm.

Answer:2

Step-by-step explanation:

I have the problem on my my review and it says 2

Substituting the given values of X into the function, the value of f(3) - f(4) is 2

Given the function :

f(3) = - 2(3) + 3

f(3) = - 6 + 3 = - 3

For X = 4 :

f(4) = - 2(4) + 3

f(4) = - 8 + 3 = - 5

f(3) - f(4) = - 3 - (-5)

f(3) - f(4) = - 3 + 5 = 2

Therefore, the value of f(3) - f(4) is 2

Learn more : https://brainly.com/question/18106342

Answer:

a = 69

b = 47

c = 116

d = 93

e = 86

See ALL MATH below!

Step-by-step explanation: (PLEASE READ!!!) ;3

remember that the sum of all the angles in a triangle will always add up to be 180.

All angles in a quadrilateral will be 360.

Pentagon, 540, and the center shape in your problem, hexagon, 720°

It's easier to think about this problem when you look at the two separate triangles, and not the small individual shapes. SO...

one of them, the one that points down, only has a single missing angle (a)

we can find that by doing this:

40 + 71 = 111

180 - 111 = 69

so a = 69

to find B, it's actually more simple. b+133, the angle next to it, will add up to 180, because it's a straight line. so...

180-133 = 47, so B = 47

now that you have a and b,  we can find c by using the same method we used to find b, but first we need the angle next to it, so we use the method to find a!

180 - (a + b) = needed angle

180 - needed angle = c

69 + 47 = 116

180-116 = 64

now we have 64. we will subtract that from 180 to get c!

180- 64 = 116

the easiest way to find d is to find the other angle in that small triangle to the bottom right, so we'll subtract 140 from 180, which is 40. 47 + 40 = 87

180 - 87 = 93

d = 93!

finally for e, I'm going to do my work below, I'll have to find many other angles to get e, so maaaaybe you'll be able to follow along.

71+40=111, 180 - 111 = 69

180 - 69 = 111

111 is the angle to the left of the given 140.

NOW we can focus on that little triangle to the left, after we get the bottom left most angle, we can add that with 47, subtract it from 180, and we'll have e!!!

180-111 = 69   (bottom right angle of little triangle)

180-116 (c) = 64 (top angle)

69 + 64 = 133

180 - 133 = 47!!

Now we have two angles of the large triangle that points up. using them, we can find the last one, E.

47 + 47 = 94

180 - 94 = e

WhiCH IS....

DRUMROLL...

86!

:D

Answer:

Anything above 15 miles, so x>15

Step-by-step explanation:

When you solve this by using an equation, you would get 77=65+0.80m (0.80 m because slope is 0.80 and m is mileage you multiply by). You would subtract 64 from both sides, so 12=0.80m and then you divide 0.80 by 12 to get m by itself to get 15. 15 miles is when both companies cost the same, so anything above 15.

Answer:

120 miles

Step-by-step explanation:

45 divided by 3 equals to 15 and 15 times 8 equals 120.

45 / 3 = 15

15 x 8 = 120

Answer:

The time it took until 2 inches of rain fell is 8 hours

Step-by-step explanation:

You know that the proportional relationship between the amount of time (in hours) it had been raining, x, and the amount of rain (in inches) it had fallen, y, is y = 0.25*x

To find the time that passed until 2 inches of rain fell, you must replace the amount of rain (in inches) that had fallen "and" by that value. In this way the following expression is obtained:

2= 0.25*x

Solving:

[tex]\frac{2}{0.25}=x[/tex]

8 = x

So, remembering that the amount of time it had been raining, x, is expressed in hours, the time it took until 2 inches of rain fell is 8 hours.

Answer:

2 inches

Step-by-step explanation:

Im on IXL, and i have the exact same question but the name is emmett instead of felipe, the answer is 2 trust me

Answer:

-2/3

Step-by-step explanation:

-3 - 5 = -8

2 - (-10) = 12

-8/12 = -2/3

Answer:

Simplify the expression.

2x-47

=6

Step-by-step explanation:

Answer:

x= -8.5

Step-by-step explanation:

1/3x - 47/6 =5

2. Get x onone side

1/3x = -17/6

3. Multiply for x

x= -8.5

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Rate of flight = 12 feets per second ; from hive to flower bed

Minutes stayed at flower bed = 13 minutes

Rate of flight = 8 feets per second ; from flower bed to hive

It is always away from the hive for a total of 15 minutes

What equation can you use to find the distance of the flower bed to the hive?

Distance = speed * time

Time = distance / speed

Let distance from flowerbed to hive = d

Time from hive to flower bed = d/12

Time from flower bed to hive = d / 8

Hence, total time taken;

d/12 + 13 + d/8 = 15

Converting minutes to seconds

d/12+ 13*60 + d/8 = 15*60

d/12 + 780 + d/8 = 900

Take the L. C. M

(2d + 18720 + 3d) / 24 = 900

5d + 18720 = 21600

We can also solve for d

5d = 21600 - 18720

5d = 2880

d = 576 feets

Answer:

[tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Given expression:

                     [tex](\frac{4}{7}) ^{2x - 1}[/tex]   = [tex]\frac{16}{49}[/tex]

  Solve for x;

Solution:

    16  = 4²

   49 = 7²

  So;

           [tex](\frac{4}{7}) ^{2x - 1}[/tex]  = [tex]\frac{4^{2} }{7^{2} }[/tex]

          [tex](\frac{4}{7}) ^{2x - 1}[/tex]   = [tex](\frac{4}{7} )^{2}[/tex]

     Now;

              2x - 1 = 2

              2x = 3

                x  = [tex]\frac{3}{2}[/tex]

Answer:

536.55x

Step-by-step explanation:

I hope this helps :)

-18x×3>x

Calculate the product

-54x>x

now we do the same thing only different way ok

-18x×3

Multiply a negative and a positive equals a negative:(-)x(+)=(-)

-(18×3)x

Multiply the numbers

-54x

now we do the same thing only different way ok

-54x>x

Move variable to the left hand side and change its sign

-54x-x>0

the same way only different way ok

-54x>x

Move variable to the left by adding its opposite to both sides

-54x-x>x-x

the sum of two opposites equals 0

-54x-x>0

Collect like terms

-55x>0

the same way only different way ok

-54x-x

If a negative term doesn't have a coefficient, it is considered that the coefficient is -1

-54x-1x

Collect like terms by calculating the sum or difference of their coefficients

(-54-1)x

Calculate the difference

-55x

now we do the same thing only different way ok

-54x-y>0

Collect like terms

-55x>0

Divide both sides of the inequality by -55 and flip the inequality sign

x<0

Now we do the same thing only different way ok

-55x>0

Divide both sides of the inequality by-55 and flip the inequality sign

-55x÷(-55)<0÷(-55)

any expression Divided by itself equals 1

x<0÷(-55)

0 Divided by any non-zero expression equals 0

Answer : x<0

PLEASE MARK ME AS BRAINLIEST

Answer:

The speed increases (45—>47—>49) then decreases (48—>47) over time.

Step-by-step explanation:

Answer:

Step-by-step explanation:

The formula u have written is incorrect. It should be C = [5 (F-32)]÷9.

To identify which is hotter, you need to bring both the values either in celsius or in Fahrenheit.

Let's convert 85°F to celsius:

C = [5 ( F - 32 )] ÷ 9

C = [5 ( 85-32 )] ÷ 9

C = [5 (53)] ÷ 9

C = 29.4 °C

thus 30°C is hotter than 85°F

Answer:

Brian’s and Kelsey’s cars traveled at the same rate.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Hope this helps

Please mark as brainlist!

Answer:

Exponents are when you are multiplying numbers by themselves. The symbol is this sign right here ^

Step-by-step explanation:

Exponents are usually shown as ^

but they may also look more like a number that is on the top right corner of a value.

When you have an exponent, since you are multiplying by itself, you get the number times the number times the number on and on, counting on what the value of the exponent is.

If the number looks like this for example 2^5

You should either see that or a 2 with a 5 hugging the top right corner of the 2.

To solve them, you should do 2 x 2 x 2 x 2 x 2, since you are multiplying the 2 by itself 5 times.

2^1 is basically just 2, as you are multiplying 2 by itself no times at all.

2^2 should be 4, because you are multiplying 2 by 2 twice.

2^3 is 2 x 2 x 2 which is 4x2 which is 8.

When a number goes to the power of 0, such as 2^0 it is ALWAYS 1. For some weird reason, exponents going to the power of 0 is always 1, no matter what value the bottom number is.

1^0 = 1

2^0 =1

19442380528^0 = 1

Exponents to the negative power, are more difficult, however is just as easy as remembering the powers of 0.

You just flip the number upside down, so if the number is 3^-2 then it becomes 1/3 ^2

If the number is 3^-4

You get 1/3 x 1/3 x 1/3 x 1/3 which you end up getting 1/81.

You have to square the top numbers too when you are using exponents, so if 2/3 to the power of 3 is used,

you have to do 2/3 times 2/3 times 2/3, which is 2x2x2 over 3x3x3 giving you 8/27.

The same principle applies to when you do negative exponents, which you are just flipping over the fraction or number and doing the exponent.

2/3 to the power of -3, would give you 3/2 times 3/2 times 3/2, which gives you 27/8.

I will not get into much more detail, as it is a big unit to go through, but once you get the hang of them, it is easy to understand. I appologize if you feel lost, but there are many websites that go into more detail much better than me. Khan Academy gives VERY in depth videos on how exponents work with some humor, but I hope this helped at least!

Answer:

757112 or 7.57112 x 10^5

Step-by-step explanation:

45 x 7^5 + 809 - 12

45 x 16807 + 809 - 12

756315 + 809 - 12

757124 - 12

757112 or 7.57112 x 10^5

Answer:

3

Step-by-step explanation:

3 + (-8) - (-8)

= 3 - 8 + 8

= 3