If y varies directly with x according to the relationship y = kx, and y = 7.5 when x = 2.5, determine the constant of variation k.

Answer:

(B) $152.50

Step-by-step explanation:

Friday: 5 hours x $7.50 per hour = $37.50

Saturday: 6 hours x $7.50 per hour = $45

Sunday: 4 hours x $7.50 per hour = $30

$40 + $37.50 + $45 + $30 = $152.50

I would have (B) $152.50 in total.

Hopefully this helps :3 sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

yooooooo wus up

Step-by-step explanation:

click point (7,5)

Step-by-step explanation:

Answer:

(3x-7) (x-7)

Step-by-step explanation:

Answer:

(3x-7) (x-7)

PLEASE MARK BRAINLIEST

Step-by-step explanation:

32−28+49

32−7−21+49

-----

32−7−21+49

(3−7)−7(3−7)

---->(3x-7) (x-7)

Answer:

3. 3/4

hope this helps

The expression 12 - (33/4) is equal to 15/4.

To express 12 - (33/4) as a fraction, we need to find a common denominator for the subtraction. The common denominator should be a multiple of 4, which is the denominator of (33/4).

We can rewrite 12 as an equivalent fraction with a denominator of 4:

12 = 48/4.

Now, we can rewrite the expression as:

48/4 - 33/4.

Since the denominators are the same, we can subtract the numerators directly:

(48 - 33) / 4 = 15/4.

Therefore, 12 - (33/4) is equal to 15/4.

In fraction form, the result is 15/4. This means that when we subtract 33/4 from 12, the answer can be represented as the fraction 15/4.

To learn more about subtraction;

https://brainly.com/question/2346316

#SPJ6

Answer:

D

Step-by-step explanation:

Answer:

sides: scalene (no sides are the same length)

angle: right (largest angle is 90*)

Answer:

1325 divided by 13 is 101.92 rounded to the nearest hundredth

Step-by-step explanation:

I'm not sure what the question is asking though.

Answer:

A. $2.25

Step-by-step explanation:

If you subtract $7.50 from $18.75 you get $11.25, then divide that by 5 and you'll get $2.25.

Hope this was useful.

Answer:

The answer would be $2.25

Step-by-step explanation:

If you multiply 2.25 with 5 you get 11.25 so now you just add the 7.50 to it and that's how you get 18.75

Answer:

35 - 4x = 3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

35−4x=3

35+−4x=3

−4x+35=3

Step 2: Subtract 35 from both sides.

−4x+35−35=3−35

−4x=−32

Step 3: Divide both sides by -4.

-4x/−4  =  −32/ −4

x=8

Answer:

8 friends

Step-by-step explanation:

4 doesn't go evenly to 9 ppl so it would be 8 friends and 3 extra pieces

Answer:

$1,250

Step-by-step explanation:

Mr. Stewart will spend $750

Mrs. Steward wants $250 less than twice that

750 * 2 is 1500

1500 - 250 is 1250, our final answer

brainliest? please and thank you.

Answer:

the correct answer is -6

Answer:

15 feet squared

Step-by-step explanation:

Area = 6 x 5 x 1/2

Area = 30 x 1/2

Area = 15

Hope that helps!

Answer:

$5.53 i think

Step-by-step explanation:

30% = 0.3

0.3 x 4.25 = 1.275

1.275 + 4.25  ≈ 5.53

Answer:

5.25

Step-by-step explanation:

Answer:

200 people

Step-by-step explanation:

I did the math on my calculator

Answer:

12x² + 17x - 5

Step-by-step explanation:

Given

(3x + 5)(4x - 1)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(4x - 1) + 5(4x - 1) ← distribute parenthesis

= 12x² - 3x + 20x - 5 ← collect like terms

= 12x² + 17x - 5

Answer:

Step-by-step explanation:

a) -3

b) 5

c) -2

d) -6

Answer:

a) (-3)

b) 5

c) (-2)

d) (-6)

Hope it helps!!

Answer:

1. C,D

2. B,C,D

3. E

4.D

5.A,B,C,D

6.D

7.C,D

8.E

Step-by-step explanation:

Hope this helps ;)

Answer:

262.5 dollars

Step-by-step explanation:

17.5% of 1500 is 262.5

Answer:

262.50

Step-by-step explanation:

change 17.5% into 0.175 then multiply it by 1,500

Answer:

25

Step-by-step explanation:

v^2 - 10v + __ : what number when added to itself gives you -10 ? -5

what's -5 x -5 ? 25

(v-5)^2 is a perfect square

Answer: 7.5 batches

Step-by-step explanation:

60/6 is 10, so she needs to make 10 batches in total.

10-2.5=7.5

Answer:

no. of muffins = 60 muffins

no of muffins in each batch = 6 muffins

no. of batches which got over = 2.5 batches

no. of muffins baked = 6 * 2.5 = 15

no. of muffins to be baked = 60 - 15 = 45

no. of batches required to bake 45 muffins = 45 / 6 = 7.5

hope this answer helps you!

please mark as brainliest... thank you!

Answer:

=225

Step-by-step explanation:

The value of x² - 2xy + y² would be; 225

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

we are given that (x-y)=15

The identity (x + y)² - (x - y)² = 4xy.

(x + y)²= (x² + 2xy + y²)

we have been asked to find x² - 2xy + y²

x² - 2xy + y² = (x - y)²

x² - 2xy + y² = 15²

x² - 2xy + y² = 225

Learn more about the algebraic expression here :

brainly.com/question/21751419

#SPJ2

Answer: To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect. The two lines intersect in (-3, -4) which is the solution to this system of equations.

Step-by-step explanation: hope this helps

Answer:

x= 4 and y=1

Step-by-step explanation:

to solve this you could either use substitution or elimination. elimination would be best her because both 'x's have the same number. subtract the equations from eahh other and solve for y, then substitute the y and solve for x

The system of equations are solved and x = -4 and y = 1

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

To solve the system of equations:

5x + y = -19 (Equation 1)

5x - 4y = -24 (Equation 2)

Let's use the elimination method in this case.

Step 1: Multiply Equation 1 by 4 and Equation 2 by 1 to eliminate y.

4(5x + y) = 4(-19)

5x - 4y = -24

20x + 4y = -76 (Equation 1 multiplied by 4)

5x - 4y = -24 (Equation 2 multiplied by 1)

Step 2: Add the equations together to eliminate y.

20x + 4y + 5x - 4y = -76 - 24

25x = -100

x = -100 / 25

x = -4

Step 3: Substitute the value of x into either Equation 1 or Equation 2 to solve for y.

5(-4) + y = -19 (Using Equation 1)

-20 + y = -19

y = -19 + 20

y = 1

Hence , the solution to the system of equations is x = -4 and y = 1

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

Answer:

https://socratic.org/questions/at-their-annual-car-wash-the-science-club-washes-30-cars-in-45-minutes-at-this-r

Step-by-step explanation:

answer is in here yw