MATHEMATICS MIDDLE SCHOOL

25e² + n 4= 20e

don't know what to do so please help
25e² + n 4= 20e don't know what to do - 1

Answers

Answer 1
Answer:

Answer:

see explanation

Step-by-step explanation:

This is a quadratic equation

Rearrange into standard form : ax² + bx + c = 0 : a ≠ 0

subtract 20e from both sides

25e² - 20e + 4 = 0 ← in standard form

This is a perfect square of the form

(a - b)² = a² - 2ab + b²

25e² = (5e)² ⇒ a = 5e and 4 = 2² ⇒ b = 2, and

- 2ab = - 2 × 5e × 2 = - 20e, hence

25e² - 20e + 4 = (5e - 2)²

⇒ (5e - 2)² = 0 ⇒ e = (2)/(5) with multiplicity 2

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A recipe that yields 12 cups of soup calls for 28 ounces of beef broth.how many ounces of beef broth do you need to make 18 of the soup?

Answers

we know that

A recipe that yields 12 cups of soup calls for 28 ounces of beef broth

so

by proportion

Find the ounces of beef broth needed to make 18 cups of soup

(28)/(12) (ounces)/(cups) =(x)/(18) (ounces)/(cups) \n \n12*x=18*28\n \nx=18*28/12\n \nx=42\ ounces

therefore

the answer is

42\ ounces

How many 20 make 88 dollars​

Answers

Answer:

4.4 but that's not rational so 4 would most likely be your answer

Step-by-step explanation:

You can't make exactly 88 dollars with a certain number of 20 dollar bills. The closest you can get is 80.

Which answer describes the simpler problems that could be used to solve this story problem? Alice made $1,245 one summer. She spent $120 on a new bike. She spent twice as much on a plane ticket to New York as she spent on her bike. How much money did Alice have left?

A.
Calculate the cost of the plane ticket. Add that number to the cost of the bike. Subtract the sum from $1,245.

B.
Calculate the cost of the plane ticket. Multiply it by 2. Add the cost of the bike. Subtract the sum from $1,245.

C.
Calculate how much more Alice spent on the plane ticket than the bike. Multiply this amount by the number of plane tickets. Add the 2 amounts.

D.
Calculate how much more Alice spent on the plane ticket than the bike. Multiply this amount by the number of plane tickets. Subtract this number from $1,245.

Answers

Its A. 120x2= 240+120=360. 1245-360= to your anwser

Simplify 12 to the 16th power over 12 to the 4th power.
12^12
12^4
1^12
1^4

Answers

 When dividing powers with the same base, just subtract the exponents with the same base as a single power. Formula = a^m / a^n = a^m^-^n 

12^1^6/12^4 

= 12^1^6^-^4 

=\ \textgreater \ 12^1^2 

= 8916100448256
12^16/12^4=12^12 answer 12 to the 12th power all you do is substract the powers 16-4=12

The graph shows the distance traveled by an Olympic-level sprinter over time during a race.Find the slope of the line. Enter your answer in the box.
​

Answers

Answer:10

Step-by-step explanation:

GIVE YOU 1000 POINTS PROMISE

Answers

so what we do is we splie it up
remember that 1/1=1 so therefor 6/6=1
find out how many 6/6 are in 23 and how much is left over
remember that you can add the top numbers if the bottom numbers are the same
23/6-6/6=17/6 (that's one)
17/6-6/6=11/6 (that's 2)
11/6-6/6=5/6 (that's three)
therefor you have
23/6=6/6+6/6+6/6+5/6=1+1+1+5/6=3+5/6=3 and 5/6

therfor 3 goes in the blank in front of the 5/6

The answer to your question is 3.

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