MATHEMATICS MIDDLE SCHOOL

If you 6,700 marbles and you want to share them equally amongst 20 friends, not using long division but what other strategies can you use to help you solve this problem?

Answers

Answer 1

Answer:

Answer:

The box or area method

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

U first set the fraction : 6700/20.

U can cancel out the zeroes, to get 670/2.

Then u basically find half of 670, by doing half of 600 plus half of 70, which is 335

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What is the sum of any rational number and it's opposite

Answers

To figure out this problem, you can look at formulas, or you can try out a few problems. There are many people that prefer one or the other in my class, so I will show you both. :)

Before I show you either of these, I'm going to define rational numbers and explain some things so that you can understand why we do what we do. Make sure to remember things like this because when you get to algebra (I'm in algebra), you need to know all of this stuff! :)

A rational number is any number that can be written in a over b form (a/b) or as a fraction. A rational number can be positive or negative because you can put positive and negative numbers into a fraction. Decimals can also be rational numbers because things such as .3 can be written as 3/10. So, depending on what number you have, there is always an opposite.

To find an opposite number, you have to basically find the absolute value (how far the number is from zero), double that number, and add it from the original number. Or, if you want to make it worlds easier, you can just make the number the opposite inverse. So, if it is -4, the opposite is 4. If the number is 7, then the opposite is -7. What is the sum between both of those examples? Zero.

Here is the formula: a+(-a)=0, (-a)+a=0
Here is some examples: (-5)+5=0, 8+(-8)=0

Thanks so much for the opportunity to answer your question. I hope this helped! :)

It's 0.

$a+(-a)=a-a=0$

How many points do you need in order to name a ray ?

Answers

Answer:

2 points are needed to name a ray.

Step-by-step explanation:

A ray is defined as a portion of a line, because it begans at a specific point while line doesn't begin or end at a specific point.

The way to define a ray is using two points, the initial where the ray begins and the second indicates the orientation.

Therefore, there are needed 2 points to name a ray.

oou only need two points. Hope this helps!

Taylor wants to make 2 1/2 times the quantity given in a recipe. The recipe calls for 1 3/4 cups of flour. How much flour will Taylor need?

Answers

$2(1)/(2)=2.5$

$1(3)/(4)=1.75$

Let's start...

a recipe say that we have to use 1.75 cups of flour, then 2.5 recipe we have to use $1.75*2.5$ cups of flour, it's iqual 4.375 cup of flour.

$1\frac34 \cdot 2\frac12=\frac74 \cdot \frac52=\frac{35}6=4\frac38\ cups\ of\ flour$

What is
$3* ( 2)/(8)$

Answers

The first step for solving this expression is to reduce the fraction with 2.
3 × $(1)/(4)$
Now multiply 3 by the numerator (top of the fraction) to find your final answer.
$(3)/(4)$
This means that the correct answer to your question is going to be $(3)/(4)$ ,, or 0.75 in decimal form.
Let me know if you have any further questions.
:)

so...

$3* (2)/(8)$
or
$3* (1)/(4) = (3)/(4)$ simplified

Hope I helped!

Find the sum of 362+265.explain why you did or did not regroup.

Answers

362+265=627.You have to regroup because when you add 2 numbers that equal more then 9 they will need extra space so you put it at the top

EDIT:
Order of operations doesn't matter in addition. So you can add them in any order.

Mathematical x4 - x2 ≥ 2x

Answers

X4-x2≥ 2x~~~2x≥ 2x TrueBecause " _ " is the same thing with "=" ; and because 2x=2x then 2x≥ 2x ~~~~~~Have a nice day!!! ★★

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Adam buys a bigger turkey than he needs. The turkey he buys weighs 7 kg. Below are the cooking instructions for the turkey. Cooking Instructions Weight Cooking times Less than 4 kg Allow 20 minutes per kg, plus 70 minutes Over 4 kg Allow 20 minutes per kg, plus 90 minutes Always leave the turkey to rest for 30 minutes before carving, to retain the moisture. He plans to carve the turkey at 17:15. What time should he start cooking the turkey? : © bksb 2016