All categories

3 years ago

So i need a example with a bar model and equations

Mathematics

1 answer:

Sholpan [36]3 years ago

4 0

A bar model is (2)(2)(2)(2) that would be 4+2=6 and you could do 6+4=10

You might be interested in

Simplify a^2+ab-2b^2/a^2-2ab-3b^2

Ahat [919]

a4b2 + 2a4 - 12a3b - 2ab3 - 4b2

———————————————————————————————

2a2

8 0

3 years ago

Read 2 more answers

Which value makes the equation 2x -4 = 16 true? *

Alinara [238K]

Answer:

10 makes this equation true

Step-by-step explanation:

2x -4 = 16 /+4

2x= 20 /÷2

x= 10

Test

2(10) - 4 = 16

20 - 4 = 16 Correct

4 0

2 years ago

Read 2 more answers

11. Use an inequality symbol (<, >, 2, =) to compare -26

svetlana [45]

Answer:

c. <

Step-by-step explanation:

-26 < (less than) 54

8 0

2 years ago

Which of these things does not show that a reaction has occurred?

Rus_ich [418]

I believe it may be C. Because, the color changing has nothing to do with the reaction you get.

7 0

3 years ago

Read 2 more answers

CAN SOMEONE HELP ME !!!!!!!!!

MissTica

Answer:

She will get 80mg of dextromethorphan and 800mg of guaifenesin. And the bottle last for 6 days approximately.

Step-by-step explanation:

Given that the Robitussin DM contains dextromethorphan 10mg/5mL and gualfenesin 100mg/5mL. And we are also given that Mrs Smith took four doses and each dose is 2 teaspoons=2X5=10mL.

So, four doses=4X10=40mL.

So, dextromethorphan in 4 doses is = $\frac{10}{5}X40=80mg$

And Guaifenesin in 4 doses is = $\frac{100}{5}X40=800mg$

Dosage of medicine daily she has to take=40mL and the bottle contains 237 mL. Hence the number of days bottle last = $\frac{237}{40}=5.925$ ≈6 days approximately.

7 0

2 years ago