MATHEMATICS HIGH SCHOOL

Frankie has $40 in his wallet. He decided to buy a pair of earrings for his mom for her birthday. He spent 25% of his money on the earrings. How much were the earrings?

Answers

Answer 1
Answer: 40x.25=10
He spent 10 dollars on them

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Find all the real cube roots of 0.000027

Answers

The answer to your question is 0.03

PLZ HELP ME !!! PLZ. What is N for silicon tetrachloride, SiCl4?

Answers

Silicon tetrachloride (SiCl4) is indeed an inorganic compound with the chemical formula SiCl4 that appears as a colorless liquid with a foul smell. It reacts with water, producing white solid silicon dioxide and HCl gas. It's soluble in water.

  • It erodes both flesh and metal.
  • It is used in the commercial production of high-quality silica.
  • It has high purity and is utilized in the production of optical fibers.
  • In benzene, toluene, and water, it dissolves.
  • It comes in the form of a whitish fuming liquid.
  • This has a melting point of 68.74 degrees Celsius and a boiling point of 57.65 degrees Celsius.
  • The crystal structure is tetrahedral.
  • SiCl4has a coordination geometry of 4.

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Find the derivative of f(x) = negative 9 divided by x at x = -8.

Answers

The derivative given in the question is 
f(x) = - 9 /x
When x = -8, then
f(-8) = 9/8
The negative sign on the right hand side gets cancelled out. From the above deduction, it can be easily concluded that the answer is 9/8. I hope that this is the answer that you were looking for and the answer has actually come to your desired help.

Marika and Freddy sold 70 homes for Ron Realty. If Marika sold 2.5 times as many homes as Freddy, how many homes did each sell?

Answers

It's 70(x)2.5 = 175 I think I might be wrong

A line intersects the points (3,-4) and (1,2).What is the slope intercept equation for this line

Answers

Answer:

y=-3x+5

Step-by-step explanation:

y=mx+b

m=(-4-2)/(3-1)=-3

b=y-mx

b =-4 - (3)(-3)

b=-4+9

b=5

25 pts HELP!!!! Help please!!!!

Answers

it's a cause I know you channel DuhItzQueenMarii

Answer:The answer is a

Step-by-step explanation:

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Two systems of equations are shown below:System A: 6x+y=2 -x-y=-3 System B: 2x-3y=-10 -x-y=-3 Which of the following statements is correct about the two system equations? A) The value of x for System B will be 4 less than the value of x for System A because the coefficient of x in the first equation of System B is 4 less than the coefficient of x in the first equation of System A. B) They will have the same solution because the first equations of both the systems have the same graph. C) They will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 4 times the second equation of System A. D) The value of x for System A will be equal to the value of y for System B because the first equation of System B is obtained by adding -4 to the first equation of System A and the second equations are identical.