MATHEMATICS MIDDLE SCHOOL

(5^2+( 16/4+2^2)+2^3

Answers

Answer 1
Answer: (5^2+( 16/4+2^2)+2^3


25+16/4+2^2+2^3

=25+4+2^2+2^3

=25+4+4+2^3

=25+8+2^3

=33+2^3

=33+8

=41
Answer 2
Answer: First, evaluate all the separate parts of the equation, then add them together.

5^2+(16/4+2^2)+2^3=25+(4+4)+8=25+8+8=41, so 41 is our answer.

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Rounding to the nearest Tenth? 0.496

Answers

0.496 to the nearest tenth Is 0.5


All you have to is to take 1 from the number that's come after the one that near to the . and you will get the answer


Hint : Before rounding make sure the number that's come after the comma is bigger or equal to 5  


I hope that's help:)
When you round to the nearest tenth, it is 0.5

Explain how to compare numbers using place value ?

Answers

Place value is ones, tens, hundredths, thousandths.
I.e. 123.56

1 is in the hundreds place. 2 is in the tens place. 3 is in the ones place. And after the decimal you add -th to the end of the place value (tens->tenths). So 5 is in the tenths place (to the right of the decimal you skip the ones place). And 6 is the hundredth place. Hope this helps!

Can someone help me please thank u

Answers

The correct answer is D
i think its d  too,,,,,,,,,,,

What is the value of 1 raised to the power of any exponent

Answers

Any exponent of 1 is simply 1 multiplying itself

For example: 1^(5) is 1×1×1×1×1

Anything multiplied by 1 is the same number started with and 1 is no exception

So 1 raised to the power of any exponent is 1

Emma has 16 crackers she eats some could she still have 16 left?

Answers

no since she ate some crakers so she has a difference amount of crakers and is less then16
no because their is 16 crackers and she already ate some and 16 - the ones she ate don't =16

A school bought pens, each costing $1, and pencils, each costing $0.5. The cost of the whole purchase was $220. How many pens and pencils were purchased if there were 80 more pencils than pens?

Answers

Answer:

  • 120 pens and 200 pencils.

Explanation:

You can set a system of two equations.

1. Variables

  • x: number of pens
  • y: number of pencils

2. Cost

  • each pen costs $1, then x pens costs: x
  • each pencil costs $0.5, then y pencil costs: 0.5y

  • Then, the total cost is: x + 0.5y

  • The cost of the whole purchase was $ 220, then the first equation is:

          x + 0.5y = 220 ↔ equation (1)

3. There were 80 more pencils than pens

Then:

  pencils  =      80   +   pens

       ↓                               ↓

       y        =      80   +      x        ↔ equation (2)

4. Solve the system

i) Substitute the equation (2) into the equation (1):

  • x + 0.5(80 + x) = 220

ii) Solve

  • x + 40 + 0.5x = 220
  • 1.5x = 180
  • x = 180/1.5
  • x = 120 pens

iii) Substitute x = 120 into the equation (2)

  • y = 80 + 120
  • y = 200 pencils

Solution: 120 pens and 200 pencils ← answer
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