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Pavel [41]
3 years ago
13

Which diagram is NOT a good model of 1/5÷6?

Mathematics
2 answers:
salantis [7]3 years ago
7 0
<h3>Answer: Lower left corner </h3>

==============================================================

Explanation:

Ignore the dashed smaller lines for now. The solid black vertical lines form 4 smaller equal pieces, and not 5. Each tickmark represents 1/4 and not 1/5

So if you wanted to represent a model for \frac{1}{4}\div 6, then you would use the lower left corner. However, we want that 1/4 to be 1/5 instead. So this is why the answer is the lower left corner.

Everything else is a correct model. We started dividing everything into 5 equal parts. Then we focused on one of those slices, and subdivided that slice into 6 equal parts. Imagine doing that for each slice and we should have 5*6 = 30 smaller pieces total. Hence \frac{1}{5} \div 6 = \frac{1}{5} \times \frac{1}{6} = \frac{1}{30}

ExtremeBDS [4]3 years ago
4 0

Answer:

The circle one

Step-by-step explanation:

What you need to do is count the number of squares or slices it has and then count how Buchanan the chunk is divided into, should be 6

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One fourth the sum of x and ten is identical to x minus 4."
Lynna [10]

Answer and Step-by-step explanation:

We are given the word format of an equation.

Let's right it out in numerical form.

\frac{1}{4} (x + 10) = x - 4

The first part says One fourth the sum of x and 10

The sum of x and 10 would be shown as x + 10, and one fourth of that means that \frac{1}{4} is multiplying (x + 10).

In this case, identical would mean equal to.

So, \frac{1}{4}(x + 10) would be = to something.

It says that it is identical to x minus 4 (x - 4).

\frac{1}{4} (x + 10) = x - 4<u> is the equation.</u>

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

5 0
3 years ago
How do I solve for the missing lengths?
Advocard [28]

Answer:

Part 4) ER=3\ units

Part 5) DF=9\sqrt{10}\ units

Part 6) DE=30\ units

Step-by-step explanation:

Part 4) Find ER

we know that

In the right triangle ERF

Applying the Pythagorean Theorem

EF^2=ER^2+RF^2

substitute the given values

(3\sqrt{10})^2=ER^2+9^2

solve for ER

ER^2=(3\sqrt{10})^2-9^2

ER^2=90-81\\ER^2=9\\ER=3\ units

Part 5) Find DF

we know that

In the right triangle DRF

Applying the Pythagorean Theorem

DF^2=DR^2+RF^2

substitute the given values

DF^2=27^2+9^2

DF^2=810\\DF=\sqrt{810}\ units

simplify

DF=9\sqrt{10}\ units

Part 6) Find DE

we know that

DE=DR+RE ----> by segment addition postulate

we have

DR=27\ units\\RE=ER=3\ units

substitute

DE=27+3=30\ units

3 0
3 years ago
What is the greatest number which can be made using each of the digits 53147
yarga [219]

Without getting fancy or tricky, the greatest number is  75,431 .

The fancy, tricky answers are things like (431)⁷⁵ and others like that.

7 0
3 years ago
If f(x) = 3x - 2 and g(x) = 2x + 1, find (f+g)(x).
jeka57 [31]

Answer:

A

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= 3x - 2 + 2x + 1 ← collect loke terms

= 5x - 1 → A

5 0
3 years ago
The number of bacteria in a culture increases continuously and rapidly when put under a heat source. a culture containing 20 bac
Len [333]

Answer:

The answer is 14.46%

Step-by-step explanation:

Given is : A culture containing 20 bacteria multiplies to 117,360 in one minute.

Let A0 be initial bacteria count = 20

Let A be final bacteria count = 117360

Time = 60 seconds

R = rate

Formula to be used = A=A0e^{rt}

117360=20e^{r*60}

5868=e^{60r}

Taking log function (ln) on both sides.

ln(5868)=ln(e^{60r} )

60r=8.677

Hence, r = 0.1446 and in percentage it is 14.46%

5 0
3 years ago
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