Math 3rd grade can someone explain easy for 3rd grade child thanks

Math 3rd Grade Can Someone Explain Easy For 3rd Grade Child Thanks

Answers

Answer 1

Answer:

A is 16, B just draw a line down from the inside square to make a rectangle, C. just multiply all the numbers around the square

Step-by-step explanation:

<<

Answer 2

Answer:

A) 72 in²

B) From the bottom right corner of the shaded square, draw a line either straight down or to the right.

C) 56 in²

Step-by-step explanation:

A) 8x9=72 in²

B) From the bottom right corner of the shaded square, draw a line either straight down or to the right.

C) The shaded area is 4x4=16, so you need to subtract that from the 72.

72-16=56 in²


Related Questions

Which are undefined terms that can be used to define other terms?
O point, segment, ray
O point, line, plane
O line, plane, cube
O line, ray, angle

Answers

Answer:

Point, Line, Plane

Step-by-step explanation: They are undefined terms because its is easier to define them using examples rather than word for word

Find the value of x and y. Select all that apply. Please show your work :) image is attached

Answers

Answer:

x = 29

y = 110°

Step-by-step explanation:

y° = (3x + 23)° => corresponding angles are congruent)

(2x + 12)° + y° = 180° => linear pair

Thus:

(2x + 12)° + (3x + 23)° = 180° => substitution

2x + 12 + 3x + 23 = 180

Add like terms

5x + 35 = 180

5x = 180 - 35

5x = 145

x = 145/5

x = 29

✔️y = (3x + 23)°

Plug in the value of x

y = 3(29) + 23

y = 110°

Which expressions represent the product of a variable and a coefficient?
Choose 3 answers:
11c
1/2 t
5. 10
j. 4

Answers

Answer:

A, B, and D

Step-by-step explanation:

A variable could be represented as a letter.

Coefficient is the number multiplying a variable.

Product means multiplication.

Therefore the expressions that represent the product of a variable and a coefficient are:

11c, ½t, and j*4

I need help again


‍♂️

Answers

Answer:

the 3rd one

Step-by-step explanation:

Can somebody help me?

Answers

Answer:

1. C   2. E   3. A   4. F   5. D   6. B

Step-by-step explanation:

Answer:

a. is 3

b. is 6

c. is 1

d. is 5

e. is 2

f. is 4

Step-by-step explanation:

Please give brainliest I worked hard on this question for you.

When the circle is filled in it means greater than or equal to or less than or equal to depending on which way its going.

If its hallow it means greater than or less than, again depending on which way its going.

Help with number two please:)

Answers

15
Well 6x3=18
So 5x3=15

Can someone give the answer to question 2

Answers

Step-by-step explanation:

try doing a2+b2=c2 it will help

What is fraction is equal 54%

Answers

Answer:

27/50

20 character minimum

Use inverse trigonometric functions to solve each problem.
A flag pole 30 feet tall casts a shadow of 50 feet on the ground. Find,
to the nearest tenth of a degree, the angle of elevation of the sun.
a.30°
b.31°
c.60°
d.61°

Answers

Answer:

BBBBBBBBBB

Step-by-step explanation:

Given the following information about two triangles, triangle CAT and triangle DOG:

Which postulate can be used to prove triangle CAT and triangle DOG are congruent?

SSS Postulate
SAS Postulate
SSA Postulate
ASA Postulate
AAS Postulate

Choose all that apply

Answers

Answer:

1st and 3rd im pretty sure

Step-by-step explanation:

Answer:

1 and 3

Step-by-step explanation:

3. Solve the system for x and y. 7x+8y= 26 -12X-7y=-58​

Answers

9514 1404 393

Answer:

  (x, y) = (6, -2)

Step-by-step explanation:

My favorite fast and easy way to solve pairs of linear equations is to use a graphing calculator. The one below shows the solution to be ...

  (x, y) = (6, -2)

__

There is no simple way to use substitution or elimination on these equations, so we elect to use the "cross multiplication method." First, we write the equations in "general form", then write the coefficients in two rows, repeating the first coefficient.

  7x +8y -26 = 0

  12x +7y -58 = 0

__

  [tex]\left[\begin{array}{cccc}7&8&-26&7\\12&7&-58&12\end{array}\right][/tex]

The method gets its name from this next step: compute the difference of cross products of pairs of adjacent columns.

  d1 = (7)(7) -(12)(8) = -47

  d2 = (8)(-58) -(7)(-26) = -282

  d3 = (-26)(12) -(-58)(7) = 94

The solution to the equations is given by ...

  1/d1 = x/d2 = y/d3   ⇒  

  x = d2/d1 = -282/-47 = 6

  y = d3/d1 = 94/-47 = -2

The solution is (x, y) = (6, -2).

_____

Additional comment

If you watch videos on this solution method you will notice the 2×4 array of coefficients is formulated slightly differently, and the final equation has the 1/( ) term at the right end of the series of equalities. We judge this variation to be less confusing and easier to remember. YMMV

The work involved in using this method is 6 multiplies, 3 adds, and 2 divides. We believe that is less work than either substitution or elimination when there is no simplification possible.

Question 20 A retired couple invested $6000 in bonds. At the end of one year, they received an interest payment of $402. What was the simple interest rate of the bonds? ​

Answers

Answer: interest rate was 6.7 %

Step-by-step explanation: 402/6000 = 0.067 = 6.7%

I need help with the answer.

On a school field trip, there will be one adult for every 12 students. Which equation could be used to find “a”, the number of adults, if “s”, the number of students, is unknown?

a) a= 12s
b) a= 12/s
c) a= s/12
d) s + 12

please please please help!

Answers

Answer:

a) a = 12s

Step-by-step explaination:

A popular game requires the player to select the same five numbers out of a set of allowed numbers that will be drawn at random by the lottery commission. For the next game, if you select the five numbers that won in the most recent prior drawing, your chances of winning will:

Answers

Options:

A.) decrease because the same five numbers are not likely to occur again so soon.

B.) Increase because those five numbers must be lucky.

C.) be unaffected because every set of five numbers is equally likely on every attempt.

D.) be unknown because it depends on how many times those five numbers have won in the last several drawings.

Answer:

be unaffected because every set of five numbers is equally likely on every attempt.

Step-by-step explanation:

Number selection in the lottery is randomized with each set of number having equal chances of being selected. This means that each and every selection attempt is independent and the outcome of each attempt does not depend on any prior outcome or event. This means that if the numbers drawn from the most previous prior drawing are selected on the next attempt, the probability of winning on the next attempt Neither increases nor decreases. Hence , the probability of winning on the next attempt with this selection is unaffected.

A dressmaker needs to cut 9-inch pieces of ribbon from rolls of ribbon that are 12 feet in length. How many 9-inch pieces can the dressmaker cut from 5 of these rolls of ribbon?

Answers

Answer:

She can cut 6 nine inch pieces.

Step-by-step explanation:

12x5=60 and 9 goes into 60 6 times which equals 54.

Step-by-step explanation:

i can't help you because that i am no a unit test i am so sorry for not help you

5. Find the surface area of a sphere with
the radius of 1.5 cm.
a. 28.26 cm
b. 7.065 cm
c. 18.84 cm
d. 14.13 cm

Answers

it should be A) 28.26cm

log²(x + 5) + log²(x - 5) = log²11​

Answers

Solution:

[tex] log_{2}(x + 5) + log_{2}(x - 5) = log_{2}(11) \\ = > log_{2}(x + 5) (x - 5) = log_{2}(11) \\ = > log_{2}( {x}^{2} - 25) = log_{2}(11) \\ cancel \: \: \: out \: \: \: log_{2} \: \: \: from \: \: \: both \: \: \: sides \\ {x}^{2} - 25 = 11 \\ = > {x}^{2} = 11 + 25 \\ = > {x}^{2} = 36 \\ = > x = \sqrt{36} \\ = > x = 6[/tex]

Answer:

x = 6

Hope it helps.

Do comment if you have any query.

Kareem said that four fifths of his age is 16years how old is Kareem?

Answers

Answer:

12.8 so about 13

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

4/5 of his age = 16

1/5 of his age = 16/4=4

which means that 5/5 of his age = 16+4 = 20

A circular railroad sign has a diameter of 20 inches. what is the area of the sign in square inches

Answers

Answer:

100[tex]\pi[/tex] (or about 314)

Step-by-step explanation:

So it's a circle, meaning that the formula for area is [tex]\pi r^{2}[/tex]. r= diameter divided by 2, so r=10. plug into equation and you get 100[tex]\pi[/tex].

314 is when you round pi to 3.14 and multiply by 100.

Two angles in a triangle are 30 degrees and 40 degrees. Find the missing angle measure. Please show your math work step by step and don't forget the unit. 40° 30​

Answers

Answer:

110

Step-by-step explanation:

Hello There!

If you didn't know the rule about angles in a triangle is that they have a sum of 180

So we can find the measure of the missing angle by subtracting the given angles (in this case 30 and 40) from 180

so the missing angle = 180 - 30 - 40

180 - 30 = 150

150 - 40 = 110

so the missing angle = 110

After eating at the restaurant, Sam, Jason, and Joan decided to divide the bill evenly. If each person paid x dollars, what was the total of the bill ?

Answers

Answer:

I need numbers ??

Step-by-step explanation:

the total bill will be divided by three

Answer:

x+x+x=3x

Each paid x dollars

Answer = 3x

write 98 as a product of its prime factor no links or photo or I will report you​

Answers

the prime factors of 98 are written as 2 x 7 x 7 or 2 x 72,

A door is 8 feet tall and 4 feet wide. What is the area?

Answers

Answer:

32

Step-by-step explanation:

a door is rectangular in shape

area = length × breadth

8 × 4

32

answer:

The area of the door is 32 square ft

I don't know what to do I'm very confused ​

Answers

Answer:

x = 33.8°

Step-by-step explanation:

The resulting diagram we have is a right triangle. To find x, apply trigonometric function.

Reference angle = x

Opposite = 116

Adjacent = 173

Apply TOA:

Tan x = Opp/Adj

[tex] tan (x) = \frac{116}{173} [/tex]

[tex] x = tan^{-1}(\frac{116}{173}) [/tex]

[tex] x = tan^{-1}(\frac{116}{173}) [/tex]

x = 33.8° (nearest tenth)

a farmers market sells apples for $2.30 per pound. what would be the cost of 3 2/5 pounds of apples

Answers

Answer:

7.20

Step-by-step explanation:

Answer:

7.20 or 6.90

Step-by-step explanation: most likely 7.20 because 3 pounds of apples is 6.90 so adding a half to that would be 7.20

Please helppppppppppp

Answers

Answer:

Shredders. Paper shredders can help you effectively dispose of sensitive documents and protect your personal information, whether at home or in the office.

Step-by-step explanation:

Answer:

Can you give us the drop down answers?

Step-by-step explanation:

What is the mean absolute deviation?
2 4 6 9

Answers

Answer:

The mean absolute deviation is 2.25. Hope this helps

Step-by-step explanation:

2+4+6+9 divided by 4=5.25

5.25-2=3.25

5.25-4=1.25

6-5.25=0.75

9-5.25=3.75

3.25+1.25+0.75+3.75=9 divided by 4=2.25

find the surface area to the nearest tenth

Answers

the area of the square in the bottom, 11*11=121
find area of the triangles, (11*12.3)/2
11*12.3=135.3
135.3/2=67.65<--- area of the triangle
67.65*4=270.6
aka. just adding the areas of the triangles up
67.65+67.65+67.65+67.65=270.6
121+270.6=391.6

391.6 !

Pump B alone fills a tank in 9 hours. Pump C takes 15 hours to fill the same tank alone. If pumps A, B and C are used, the tank fills in 5 hours. How long does it take pump A to fill the the tank alone?

Answers

Answer:

19

Step-by-step explanation:

9+15=24

24-5=

19 is the answer


Part B
You will now perform the construction of a tangent to a circle using modern tools.
Open GeoGebra C, and complete each step below. If you need help, follow these
instructions for using GeoGebra.
1. Create a circle with a center at point A with a radius of your choice.
2. Now create a point outside of circle A, and label it point B. Draw a line segment
connecting points A and B. Find the midpoint of line segment AB, and label it
point C.
3. Using point C as the center, create a circle that passes through point A.
4. Circle A and circle C intersect at two points. Find these intersection points, and
label them points D and E.
5. Draw rays from point B through point D and from point B through point E. Also
draw line segments connecting points A and D and points A andis.
Take a screenshot of your image, save it, and insert the image in the space provided

Answers

Answer:

This is what I put ! I got an A! (Although the extra rays I don't think are needed)

Step-by-step explanation:

The figure is attached below

What is Tangent?In geometry, the tangent line to a plane curve at a given point is the straight line that "just touches" the curve at that point. A tangent of a circle is defined as a straight line that touches or intersects the circle at only one point. A tangent is a line that touches the edge of a curve or circle at one point, but does not cross it.

How to solve this problem?

The steps are as follow:

Create a circle with a center at point A with a radius of your choice.Now create a point outside of circle A, and label it point B. Draw a line segment connecting points A and B. Find the midpoint of line segment AB, and label it point C.Using point C as the center, create a circle that passes through point A.Circle A and circle C intersect at two points. Find these intersection points, and label them points D and E.Draw rays from point B through point D and from point B through point E. Also draw line segments connecting points A and D and points A andis.

From the above steps we have drawn the figure which is attached below

Learn more about tangent here:

https://brainly.com/question/4470346

#SPJ2

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