MATHEMATICS HIGH SCHOOL

Sean bought a laptop and a printer. He sold both items for £1,500 getting £1,350 just for the laptop. Sean made a 24% profit on the cost of the printer. What was the cost of the printer? Give your answer to 2 decimal places.

Answers

Answer 1

Answer:

Step-by-step explanation:

Sean purchased a printer and laptop

He sold both for 1,500

He sold the laptop at 1,350

Therefore the cost of the printer can be calculated as follows

1500-1350

= 150

24/100×150

= 0.24×150

= 36

Henve the cost of the printer is £36

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Express 130 billion in scientific notation

Answers

Answer:

The scientific notation of $130$ billion is $1.3*10^(11)$

Step-by-step explanation:

Given: $130$ billion

As per question,

we have to express $130$ billion in scientific notation.

As we know that,

A method for expressing a given quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power.

Example: $1385.62$ written as $1.386*10^3$ .

$1\rm\;{billion}=1,000,000,000\n130\rm\;{billion}=130,000,000,000$

Now, In scentific notation of $130,000,000,000=13*10^(10)$

$=1.3*10^(11)$

Hence, $130$ billion in scientific notation is $1.3*10^(11)$ .

For more information:

brainly.com/question/2005529?referrer=searchResults

130,000,000,000 = 1.3 x 10^11

Which of the following is a solution of y - x < -3?

Answers

If you would like to find the solution for the inequation y - x < - 3, you can do this using the following steps:

y - x < - 3
y - x + x < - 3 + x
y < - 3 + x
y < x - 3

The correct result would be y < x - 3.

What is the distance between 12 7 and 3 7 !

Answers

Answer:

The answer is 15 units is the answer boom

Step-by-step explanation:

Answer:

Step-by-step explanation:

A sprinter on the track team ran the 100 meter dash and redcorded the time for each race. The race times (in seconds) were:12.4 13.1 12.7 12.8 13.0 12.9 13.1 13.5

Answers

Answer:

What is the question please post the full question next time

A researcher wants to develop a product for families who have small children. He needs to determine if there is a nationwide interest in a toy that will help children describe their emotions. He asks only a sample of the population to complete his survey. What should be true of the sample so that the results of the survey can be used to predict the results of surveying the population?A) The size of the sample should be the same size as the population.
B)The families included in the sample should represent the families in the population.
C) The families included in the sample cannot be included in the population.
D)The size of the sample should be larger than the size of the population.

Answers

Here is the answer to the given question above. Given the scenario, that statement that is considered true of the sample so that the results of the survey can be used to predict the results of surveying the population is this: The families included in the sample should represent the families in the population. The answer would be option B.

Answer:

The answer is B.

Which shows the dimensions of two rectangular prisms that have volumes of 72 cm3 but different surface areas? A. 6 cm by 3 cm by 4 cm;
12 cm by 2 cm by 3 cm

B. 2 cm by 4 cm by 9 cm;
9 cm by 4 cm by 2 cm

C. 3 cm by 3 cm by 8 cm;
2 cm by 6 cm by 8 cm

D. 6 cm by 3 cm by 4 cm;
9 cm by 4 cm by 3 cm

Answers

A. 6*3*4=12*2*3 = 72
Surface area =
2(6*3) + 2(3*4) + 2(6*4) not equal to 2(12*2) + 2(12*3) + 2*(2*3)

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