1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
-Dominant- [34]
3 years ago
6

How a bar model can be used to show a subtraction problem? 2 grade

Mathematics
2 answers:
AlekseyPX3 years ago
7 0
It can be used because it shows how many of something you took away .
lilavasa [31]3 years ago
5 0
Lets say that you have 4-2=? you can use a bar model.... 

 {the stars are the bars}
 you have 4 total and now you need to subtract 2
****
{ i just took away 2 and then you count the bars but in this model count the stars}
**

Hope this helps!!! 

You might be interested in
Plssssssssssssssss help
cluponka [151]

Answer:

EF is the chord of K

hope it helped

7 0
3 years ago
Read 2 more answers
-4(d+5)-3d>8 please help i dont need you to explain it only answer please and thank you
Gala2k [10]
Show your work kidddd
8 0
3 years ago
ANSWER ASAP ITS FOR FINALS
Roman55 [17]

Answer:

9. 66°

10. 44°

11. 2\sqrt{7}

12. 2\sqrt{3}

13. 27.3

14. 33.9

15. 22°

16. 24°

Step-by-step explanation:

9. Add 120 + 80 (equals 200) and subtract that from 360 (Because all angles in a quadrilteral add to 360°), this equals 160. Plug the same number in for both variables in the two other angle equations until the two angles add to 160. For shown work on #9, write:

120 + 80 = 200

360 - 200 = 160

12(5) + 6 = 66°

19(5) - 1 = 94°

94 + 66 = 160

10. Because the two sides are marked as congruent, the two angles are as well. This means the unlabeled angle is also 68°. The interior angles of a triangle always add to 180°, so add 68+68 (equals 136) and subtract that from 180, this equals 44. For shown work on #10, write:

68 x 2 = 136

180 - 136 = 44

11. Use the Pythagorean theorem (a² + b² = c²) (Make sure to plug in the hypotenuse for c). Solve the equation. For shown work on #10, write:

a² + b² = c²

a² + 6² = 8²

a² + 36 = 64

a² = 28

a = \sqrt{28}

a = 2\sqrt{7}

12. (Same steps as #11) Use the Pythagorean theorem (a² + b² = c²) (Make sure to plug in the hypotenuse for c). Solve the equation. For shown work on #11, write:

a² + b² = c²

a² + 2² = 4²

a² + 4 = 16

a² = 12

a = \sqrt{12}

a = 2\sqrt{3}

13. Use SOH CAH TOA and solve with a scientific calculator. For shown work on #13, write:

Sin(47°) = \frac{20}{x}

x = 27.3

14. Use SOH CAH TOA and solve with a scientific calculator. For shown work on #14, write:

Tan(62°) = \frac{x}{18}

x = 33.9

15. Use SOH CAH TOA and solve with a scientific calculator. For shown work on #15, write:

cos(θ) = 52/56

θ = cos^-1 (0.93)

θ = 22°

16. (Same steps as #15) Use SOH CAH TOA and solve with a scientific calculator. For shown work on #16, write:

sin(θ) = 4/10

θ = sin^-1 (0.4)

θ = 24°

Good luck!!

8 0
2 years ago
What is the lowest and highest grade average in the class respectively?
sineoko [7]

\Huge\bf  \rightarrow \mid\mathcal{\underline{ \purple{Answer}}} \mid

<u> -76 and 95 is the lowest and highest grade average in the class, respectively.</u>

7 0
3 years ago
When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was 3:2. After 144 pineapple muf
Elena L [17]
3x-\ pineapple\\&#10;2x-\ mango\\\\&#10;after\ selling\ 144\ pineapple:\\&#10;3y-\ pineapple\\&#10;5y-\ mango\\\\&#10;3x-144=3y\ \ | add\ 144\\&#10;2x=5y\\\\&#10;3x=3y+144\ \ \ | divide\ by\ 3\\&#10;2x=5y\\\\&#10;x=y+48\\2x=5y\\\\&#10;2(y+48)=5y\\&#10;2y+96=5y\ \ \ | subtract\ 2y\\&#10;96=3y\ \ \ | divide\ by\ 3\\&#10;32=y\\&#10;x=32+48=80\\\\&#10;There\ were\ 240\ pineapple\ muffins.&#10;
6 0
3 years ago
Other questions:
  • Identify the ordered pair that represents the vector from a(1,6) to b(2,-3) and the magnitude of ab
    11·1 answer
  • The perimeter of a triangular plot of land is 2400ft . the longest side is 200 ft less than twice the shortest. the middle side
    8·1 answer
  • ASAP ANSWER THIS<br> I NEED TO PASS
    11·1 answer
  • Solve the system of linear equations using elimination. −2x − y = 3 −9x − y = 17
    7·2 answers
  • Use the slope formula to find the slope of the line passing through the given points.
    10·2 answers
  • The men's record for javelin throw is 323 ft and 1 in. How many meters do you have to
    8·1 answer
  • PLEASE HELP ASAP!!!!!!
    8·2 answers
  • Answer The question ASAP please and thank you
    14·2 answers
  • $1
    9·2 answers
  • What can we conclude? please answer asap
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!