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3 years ago

Margaret is dividing 829 by 4. Explain why Margaret needs to write a zero in the tens place of the quotient

1 answer:

3 0

Quotient is the number gotten when you divide a number by a diviser.
In this case our number is 829 and the diviser is 4, and the quotient is 207.25. When the first digit 8 is divided by 4, we get 2, then since the second digit 2 is less than four we must put zero on the tens digit of the quotient so that we can pick the third digit 9 to form 29 which is greater than 4,and the process continues ...

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when asked to factor the trinomial x^2-18x+81 a student gives the answer (x-9(x+9) which of the following statements is true

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(x - 9)(x + 9) would give you x^2 - 81 when you get a plus and minus like that after you factor the middle term is canceled out so the answer would be (x - 9)^2

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Which values are solutions to the inequality below?<br> Check all that apply.<br> Sqrt x > 8

Sophie [7]

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Abel was wrapping a gift for an upcoming party. He began with 20 1/2 feet of paper. He used 5 5/12 feet on his first gift and 3

FrozenT [24]

Hey there!

$20 \dfrac{1}{2} - 5 \dfrac{5}{12} - 3 \dfrac{1}{3} + 2 \times 10 \dfrac{1}{2} \\ = \dfrac{41}{2} - \dfrac{65}{12} - \dfrac{10}{3} + 21 \\ = \dfrac{246}{12} - \dfrac{65}{12} - \dfrac{40}{12} + 21 \\ = \dfrac{141}{12} + 21 \\ = 32 \dfrac{3}{4}$

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Hope this helps. - M

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3 years ago

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Please help thank you so much

SSSSS [86.1K]

Answer:

no solution

Step-by-step explanation:

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Please help me with this

alexdok [17]

Answer:

Step-by-step explanation:

Let's set this first one really carefully.

First of all, you were told by someone on the last sheet that you put one set of numbers with the same units on one side.

The other set of numbers goes on the other sided.

A proportion can never have more than 4 numbers, at least not at this level.

So let's start with the percents on one side

There's 80% and 100%. We'll put them on the left side.

80%

====

100%

Now we put an equal sign in.

80%

=== =

100%

Now you need the number of questions. One of the number of questions you don't know. Which one? It turns out that you don't know how many she got right. So let the number she got right = x

Now you have a choice. Which way do you write the proportion. Choice one is

or is it

===

The answer is the total number of questions (20) goes straight across from 100. 100% of the questions is equal to 20.

So the proportion is

80 x

== = ====

100 20

Now I wonder if you know what to do from here? This is a question you will have to answer for me. But the next step is to cross multiply.

Rule: Upper Left * Lower Right = lower left * Upper Right.

Always true. Always done for every question.

80 * 20 = 100 * x Multiply out the left

1600 = 100 * x Divide by 100

1600/100 = x Do the division

16 = x

In other words. There were 16 questions she got right.

Two

You have a wonderful guide for teaching this. This question is of paramount importance.

The percents are known. 90% and 100%. Same as above.

So the left side of the proportion is known.

100

We again, just as in the last question have to find a number. A crew contains 30 people. That's 90% or 100%, which? Think carefully before reading on.

If you thought it was 90%, you would be incorrect. 30 people represents everyone. So the second side is

Again the 30 goes opposite the 100

So x must be what 90% represents in number of people

The proportion is

90 x

=== = ===

100 30

We are not looking for a %. We have both of them. We aren't looking for the whole. We know that's 30

Answer: So must be looking for a partial.

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You know what the whole is (or should). It is the starting price of the handbag which is 72 dollars.

You know what 100% of the handbag is (72 dollars)

You know what the "part" of the whole is 21.60

So you must be looking for the % which is the unknown.

x 21.60

== = ===

100 72.

Four

I'd like to leave 4. PM me about a possible answer.

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