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3 years ago

How do I teach my 4th grader to divide with two digits. Example 672/32 what are the steps?

Mathematics

2 answers:

Elanso [62]3 years ago

7 0

Answer/Work:
672 divided by 32
is 21 with remainder 0
= 21 R 0
= 21 0/32

Show Work:
(There are a few files that should help you see the steps of this problem, and examples (of)
and how to do it) I hope this helps! If not, please let me know. :)

<span><span> </span></span>

kipiarov [429]3 years ago

5 0

Ok so it's simple this is the way i learned it.
   ____
32 |672 first see how many times 32 goes into 6 which is 0 so put a 0 above 6

   _0___
32 |672 now you take the remainder from the last one which is 6 and combine it with the 7 so then you see how many times how many times 32 goes into 67 which is 2 so put a 2 over it.
   _02__
32 |672 next once again take the remainder which is 1 and combine it with the next number which is 2 to make 12 then find out how many times that goes into 32

you basically do that till you get a number without a remainder and when you run out of numbers just put a decimal and zeros after it

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Based only on the information given in the diagram, which congruence

romanna [79]

<h3>1 Answer: Choice D) SAS</h3>

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

Explanation:

LA stands for Leg Angle. More specifically, the angle is an acute angle. This theorem only works for right triangles. We see that ED = LK which is one pair of congruent leg segments. So that takes care of the L part of LA. However, we don't know anything about the acute angles. We don't know if angle E = angle L, or if angle F = angle M, or something along those lines. We need angle markers to tell us or not.

In short, we only have half the info needed for LA, so we must cross choice A off the list.

----------------

HA stands for hypotenuse angle, or hypotenuse acute angle, and this rule only applies for right triangles. We don't know anything about the hypotenuse lengths if they are the same or not.

Similar to choice A, we don't know anything about the acute angles either.

Those two facts mean we must cross off choice B.

----------------

AAS stands for Angle Angle Side. The order is important because the side is not between the angles. The diagram only shows one pair of angles that are congruent to one another. That pair being the 90 degree angles indicated with the square marker. We don't have another pair of angles, so we cannot use AAS.

Cross choice C off the list.

-----------------

We can use SAS because we have two pairs of congruent sides and one pair of congruent angles.

The congruent sides are

ED = LK (double tickmarks)
DF = KM (single tickmarks)

That takes care of the two "S"s of "SAS". The "A" would be those two right angles which are congruent to one another. The angles are between the congruent sides which is important. Recall that SSA is not a valid congruence theorem.

So that's why choice D is the only answer.

-----------------

Side note: We could use the LL theorem, where L stands for leg, since we are given two pairs of congruent legs for each triangle. Like LA and HA, this only applies to right triangles. LL is a special case of SAS. However, LL isn't listed so we'll just be sticking with SAS as the only answer.

8 0

3 years ago

A point is reflected across the y axis the new point is located at -4.25,-1.75 write the order pair that represents the original

Naya [18.7K]

Answer:

(4.25, - 1.75)

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 4.25, - 1.75 ) → (4.25, - 1.75 ) ← original point

5 0

3 years ago

Use the drawing tool(s) to form the correct answers on the provided graph.

lianna [129]

Answer:

see below

Step-by-step explanation:

A graphing calculator can help you do this.

The function crosses the y-axis where x=0.

g(0) = -5^0 +5 = -1 +5

g(0) = 4

The function crosses the x-axis where g(x) = 0

0 = -5^x +5

5^x = 5 = 5^1

x = 1

g(1) = 0

The points of interest are (0, 4) and (1, 0).

7 0

3 years ago

5x−2(x+1)=1/4 find x pretty please

disa [49]

Answer:

$\huge\boxed{\bf\:x = \frac{3}{4}}$

Step-by-step explanation:

$5x - 2(x+1)=\frac{1}{4}$

Use the distributive property for 2(x + 1).

$5x - 2x - 2= \frac{1}{4}$

Subtract 2x from 5x.

$3x - 2= \frac{1}{4}$

Bring 2 to the right hand side of the equation .

$3x = \frac{1}{4} + 2$

Add 1/4 & 2.

$3x = \frac{1}{4} + \frac{8}{4} \: \: [LCM = 4]\\3x = \frac{9}{4}$

Now, bring 3 to the right hand side of the equation .

$x = \frac{9}{4} \times \frac{1}{3}\\x = \frac{9}{12}\\\boxed{\bf\:x = \frac{3}{4}}$

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6 0

2 years ago

Read 2 more answers

The rectangle shown has a length (x+16)cm and width x cm. The square has a length (3x-2)cm. The area of the rectangle is 16cm^2

sineoko [7]

Answer:

Step-by-step explanation:

We have the sides for both the rectangle and the square. The problem says that the area of the rectangle is 16 more than the area of the square. The area of the rectangle is

(x + 16)(x)

The area of the square is

(3x - 2)(3x - 2)

"The area of the rectangle" "is" "16 more than the area of the square"

x(x + 16) = (3x - 2)(3x - 2) + 16

FOILing the left side and then setting it equal to the FOILing of the right side:

$x^2+16x=9x^2-12x+4+16$ and

$x^2+16x=9x^2-12x+20$

Now we will get everything on the same side of the equals sign, set the polynomial equal to 0, and factor to solve for x:

$8x^2-28x+20=0$

Factor that however you learned best to factor quadratics (the quadratic formula works for a second degree polynomial every time!) to get that

x = 1 or x = 2.5

6 0

3 years ago