MATHEMATICS HIGH SCHOOL

4x5+6divided by 3 using bidmas

Answers

Answer 1
Answer:

Answer:

8.6666666

or

8.7

Step-by-step explanation:
Answer 2
Answer:

To solve 4x5+6 divided by 3 using BIDMAS, multiply 4 by 5 to get 20, then add 6 to get 26. Finally, divide the sum by 3 to get 8.67.

To solve 4x5+6 divided by 3 using the order of operations known as BIDMAS, we start by performing the multiplication: 4x5=20. Then, we add the result to 6: 20+6=26. Finally, we divide the sum by 3: 26/3= 8.6667 (rounded to 4 decimal places) or 8.67 (rounded to 2 decimal places).

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35.4% expressed as a decimal becomes
A. 0.354.
B. 3.54.
C. 354.
D. 35.0

Answers

To convert a percentage into a decimal, you divide it by 100. So in this case, we do 35.4/100 = 0.354. Therefore A is the correct answer.

What is the slope of the line that has the equation 4x+2y=12

Answers

Subtract 4x from each side:
4x-4x+2y=-4x+12 collect like terms:
2y=-4x+12 divide each term by 2
y=-2x+6 so the slope is -2 hope this helps:)

Which of the following is not a solution for the variable y in the following inequality? 4y - 3 > 37 a. 16
b. 14
c. 12
d. 10

Answers

The answer it d.10 because 4(10)-3 would be equal to 37, so it would be 37=37.

Here is a problem from way back from my bro's math (elementary)3 cats eat 3 cats in 3 minutes
how long does it take for 100 cats to eat 100 fish?

show all work




(hint: answer is not 100 minutes, and if you answer 100 minutes you are wrong and will be reported)

Answers

3 cats -------------- 3  fish -------------3 minutes
100 cats------------100 fish -----------  x

The cats and fish are variables directly proportional, the cats and the time are varibles inversely proportional,
Therefore, 

3 cats * 100 fish * x=100 cats * 3 fish * 3 minutes
x=(100 cats * 3 fish * 3 minutes) / (3 cats * 100 fish)
x=3 minutes.

Answer: the time will be 3 minutes. 

Write an equivalent expression for 12^3 • 12^9 • 12^4 • 12^2

Answers

9514 1404 393

Answer:

  12^18

Step-by-step explanation:

Each exponent tells you the number of times 12 is repeated as a factor. The total number of repetitions of 12 as a factor in this product is ...

  3 +9 +4 +2 = 18

The equivalent expression is 12¹⁸.

Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer. 1 inch ≈ 1.578 × 10 -^5 miles.

Answers

Answer:

  7.763×10^7 inches

Step-by-step explanation:

  (1225\,mi)(1\,in)/(1.578\cdot 10^(-5)\,mi)=(12.25)/(1.578)\cdot 10^(2-(-5))\,in \approx 7.763\cdot 10^7\,in

When writing 1225 in scientific notation, it is convenient to choose an exponent so that the division result comes out with the right scale factor. It is easy to see that 1.2 < 1.6, so use of numbers with exactly one digit to the left of the decimal point would result in a fraction as an answer. We want the answer to have 1 digit left of the decimal point, so by scaling the operands to be 12. and 1.6, we get that result. Of course, the powers of 10 are adjusted accordingly.

This scaling process only matters if you're computing the results by hand. Any calculator can properly keep track of the required exponents.

__

"Back in the day" when slide rules were the calculating tool of choice, the operands and answer to any multiplication or division problem were only shown as 3 (sometimes 4) significant digits. All of the power-of-ten scaling was done "by hand" (usually, mentally). That is, the division would be 1225/1578 ≈ 776 × some scale factor. This is where thinking of the numbers as 12.25/1.578 = 7.76 comes in handy.
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