MATHEMATICS MIDDLE SCHOOL

Alma ask money to buy a bicycle of $150. his mom give him $40 at the moment and gives kyle $10 each month to pay the total of the bicycle. Please write an equation for this problem.

Answers

Answer 1

Answer:

Answer: $40+$10x

Step-by-step explanation:

1. We already know he has $40.

2. 10x represent the 10 dollars he is paid per month.

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Why is the answer to this C and not E. Don’t you usually keep the negative number negative? Why is this one not left negative?

Answers

Answer:

Step-by-step explanation:

Given

x² = 7x - 3 ( subtract 7x - 3 from both sides )

x² - 7x + 3 = 0 ← in standard form

with a = 1, b = - 7, c = 3

Using the quadratic formula to solve for x

x = ( - (- 7) ± $√((-7)^2-(4(1)(3))$ ) / 2

= ( 7 ± $√(49-12)$ ) / 2

= $(7+/-√(37) )/(2)$ → C

What is the coefficient of the fifth term in (a+b)^9

Answers

Answer:

The coefficient of the fifth term is 126.

Step-by-step explanation:

The question implies that after the expansion of $(a+b)^(9)$ , what would be the coefficient of the fifth term. This long expansion can be easily done by the application of the Pascal principle of expansion.

Thus,

$(a+b)^(9)$ = $a^(9)$ + $9a^(8)b$ + $36a^(7) b^(2)$ + $84a^(6)b^(3)$ + $126a^(5)b^(4)$ + $126a^(4) b^(5)$ + $84a^(3) b^(6)$ + $36a^(2) b^(7)$ + $9ab^(8)$ + $b^(9)$

So, from this expansion, the fifth term is $126a^(5)b^(4)$ . And its coefficient is 126.

Answer:

If you expand this using pascals triangle you will see that the fifth term is 126a^5b^4

the coefficient is the number 126

Which mixed number is equal to 6.75? A. 6 75 / 1000

B. 6 5 / 7

C. 6 3 / 4

D. 67 / 5

Help Please!!!!

Answers

C. 6 3/4

Because: 6 is our whole number inside 6.75, now, we know the whole number in the fraction. Also, it must be a mixed number, that means it must contain a whole number and a fraction.

3/4 = .75
6 = 6

6.75 = 6 3/4

6.75
= 6+ 0.75
= 6+ 75/100
= 6+ 3/4
= 6 3/4

The correct answer is C. 6 3/4~

HELP PLEASE URGENT!!!!

Answers

25d exponent is 2, I think.

Jenna bought tee shirts for $4.50 each. She is selling then for $6 each. What was the percent of the mark up?

Answers

Price at which Jenna bought a single tee shirt = $4.50
Selling price of each tee shirt $6
Then
Profit on each tee shirt made by Jenna = (6 - 4.50) dollars
   = 1.50 dollars
Percentage of profit made by Jenna on each shirt = (1.5/4.5) * 100 percent
   = 150/4.5 percent
      = 33.33 percent.
The percentage on the mark up price for Jenna was 33.33%.I hope I have helped you andthe procedure for doing such problems is clear to you.

How can you determine if two ratios are equivalent