MATHEMATICS MIDDLE SCHOOL

The amount a car dealership earns for selling a car is directly proportional to the price of the car. The table shows this relationship.What is the constant of proportionality?

Car price ($) (x) 20,000 30,000 40,000
Amount earned ($) (y) 1000 1500 2000

Answers

Answer 1
Answer: I think its 2 because if you divide 20,000 over 1000 you get 2. If you do that for the other values, you would also get 2.

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Raffle tickets are sold and 6 prizes are available for the lucky draw. A total of 1,356 raffle tickets are sold for 4/5 dollars each and the 6 prizes cost 8 3/10 each. How much money was raise from the raffle tickets?
Please Help Me !!!!!! 1.  Polynomials Add or subtract(4x2 + 15x – 3) – (–3x2 + 5)  (1 point) A.7x2 + 15x – 8 B.x2 + 12x + 2 C.x2 + 15x – 8 D.7x2 + 8 2. 2. Simplify the polynomial. –3f2 + 4f – 3 + 8f2 + 7f + 1  (1 point)  A.5f2 – 11f + 2 B.11f2 + 11f + 2 C.5f2 + 11f – 2 D.–5f2 + 11f – 2  3. Add or subtract    (2x2 + 6x + 1) + (–7x2 + 2x – 3)  (1 point)  A.5x2 – 4x – 2 B.–5x2 + 8x – 2 C.5x2 – 8x + 2 D.–9x2 – 8x + 2 4. Name the coefficients in the polynomial.    4x2 + 3x –  3 (1 point)  A.4, –3, –3  B.4, 3 C.4, 3, 3 D.–4, –3 5.   How many terms are in the following polynomial?  6x4 + 3x3 – 2x2 + 15x – 14  (1 point)  A. 5 B.4 C.3 D.2 6.  In the expression –7x – 5x2 + 5, what is the coefficient of x?  (1 point)  A.7 B.5C.–5D. -7  7. Write the expression using scientific notation.    (2.5 • 104)(4 • 103) (1 point)A.10 • 107 B.10 • 108 C.1 • 108 D.10 • 1012   8. Write the expression using a single exponent. 22 • 28 (1 point)A.410B.210C.416D.216 
Elimination Method 7x=3y+45 4x+5y=19 (Show it step by step please!)
Help me please leave an explanation if possibleill make you brainlyest if you get the answer correct
A chair that cost $210 was reduced by 40% for a one day sale after the sale, the sale price was increased by 40% what is the price of the chairEnter

Lia wants to find the sum of 17, 51, 10 and 13. Show two different ways that Lia could find the sum of these numbers.

Answers

Since addition is commutative, she can add anyway she wants.
(17+51)+(10+13)
(51+10)+(17+13)
Hope this helps. 

Write a word problem that can be solved by finding the numbers that have four as a factor

Answers

Chelsea has two red balls Chelsea's friend Marcy has two times that many balls how many balls does Marcy have ?

What is 25/99 in decimal

Answers

0.2525252525 repeating
25 / 99 as a decimal  so 25/99 = 0.25

What is 41 3/4 simplified ?

Answers

Answer:

41 3/4 Is already is in simplified form

Step-by-step explanation:
It’s already simplified.

Three vertices of a rectangle are (–2, 1), (–2, –3), and (4, –3)What are the coordinates of the fourth corner point of the rectangle


A.(-2,4)

B.(-3,4)

C.(4,1)

D.(4,3)

Answers

the answer is C
it's easier if you graph it
we know that the x of the unknown vertice is 4, because this is a rectangle and that vertices has to be on the same x line as the point below.
y of the unknown vertice has to be 1 because the vertice to the left needs to be on the same y line as the unknown vertice

The ratio of boys to girls in a venior Senior Promede is 4:3 Jane counted that- there are 12 more boys than girls. How many boys and girls, how many are there
in the prom?​

Answers

Answer:

36 girls, 48 boys . Total of 84 in the prom.

Step-by-step explanation:

Let the number of girls be x, then the number of boys is x+12.

So we have the equation:

4/3 = (x + 12) / x

4x = 3x + 36

x = 36.

So there are 36 girls and 48 boys in the prom.
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What’s is the value of x?
A car sells for $19,299 with the tax title and license and any other fees included in that price in order to get that price 17% must be paid as a down payment about how much will still be owed after the down payment has been made?
Complete the explanation of how you know that the quotient 43.6= 102 is equal to the product43.6 x 0.01When you divide by 10%, the decimal point moves?V to theWhen you multiply by 001, the decimal point moves? V to theSo, both equal