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faltersainse [42]
3 years ago
8

an art teacher has 28 students in her first period class and 24 in her second period class if almost 30 of the students in these

classes are boys about how many boys are in her first two class
Mathematics
2 answers:
tatiyna3 years ago
6 0

Answer:

im not sure if this answer is correct but i think its 22

Klio2033 [76]3 years ago
6 0

Answer:

22

Step-by-step explanation:

you just have to find the common number between both

https://rachelmarley.weebly.com/

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Be careful this person wont stop they have many other accounts dont open the link
Tpy6a [65]

Answer:

What is in the link??

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
You are ordering pizzas for a birthday party and getting them delivered to your house. You order 12 pepperoni pizzas, 8 cheese p
krok68 [10]

Let

x-------> the cost of each  pepperoni pizza

y-------> the cost of each  cheese pizza

z-------> the cost of each  Hawaiian pizza

we know that

12x+8y+4z+5.50=184.54 ------> equation A

y=x -----> equation B

z=x -----> equation C

Substitute equation B and equation C in equation A

12x+8x+4x+5.50=184.54

solve for x

24x=184.54-5.50

x=179/24

x=\$7.46

therefore

<u>the answer is</u>

\$7.46

8 0
3 years ago
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Josephine has a rectangular garden with an area of 2x2 + x – 6 square feet. A rectangle labeled 2 x squared + x minus 6 Which ex
cricket20 [7]

Answer:

Its D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
5.4 ⋅ 103 to standard form.
kirill [66]
5.4 * 10^3=5,400 is your answer
7 0
3 years ago
A new car loses value at a constant rate. You purchase a new car for $21,500. After 3 years the value of the car was $14,120. Wh
Airida [17]

Answer:

Step-by-step explanation:

If the car is depreciating at a constant rate, this indicates that the function is linear.  We can find the equation for the linear function by first finding the slope of the line.  Let's do that using the slope formula.  The coordinates we will use to do this are found in (year, value).  Our coordinates are (0, 21500) and (3, 14120).  The first coordinate says that before any time goes by at all, meaning when the car was brand new, its value was 21500.  The second coordinate says that after 3 years, the value of the car was 14120.

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

Filling in:

m=\frac{14120-21500}{3-0}=\frac{-7380}{3}=-2460

This is the slope.  In the context of our problem, it means that for each year that goes by, the car's value goes down $2460.  

Now we can use that slope and one of our coordinates to write the equation of the line.   We can choose either one of the coordinates to write our equation.  Let's use the first one, since it will be easier.  Rest assured that regardless of which one you choose, you will get the same equation. We fill in the slope-inteercept form of a line, y = mx + b, where y is the y value from the coordinate, m is the slope we solved for, x is the x value from the same coordinate, and b is the y-intercept.  We are solving for b.

21500 = -2460(0) + b and

21500 = 0 + b so

b = 21500.  Our equation, then, is

y = -2460x + 21500

If we want to find the value of the car, y, in 5 years, x, we plug in 5 for x and solve for y.

y = -2460(5) + 21500 and

y = -12300 + 21500 so

y = $9200

That means that in 5 year the car will be worth only $9200 when it is 5 years old.

5 0
3 years ago
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