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2 years ago

Draw a rectangular fraction model to explain your thinking. Then, write a multiplication sentence. What is 4/9 x 3/8 ?

Mathematics

1 answer:

ELEN [110]2 years ago

8 0

Answer:

The multiplication sentence is 4/9*3/8=1/6

then for the rectangular fraction model draw two rectangles and in the first one draw 9 boxes and shade in 4. Then, in the second one draw 8 boxes and shade 3.

Step-by-step explanation:

This is an example:

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Greensboro gets 12 times as many inches of snow as Redville gets. Altoghter, the two towns gets 65 inches of snow.How many inche

Tomtit [17]

Inches of snow Greensboro gets = g
Inches of snow Redville gets = r

$\left \{ {{g=12r} \atop {g+r=65}} \right. \\ \\ (12r)+r=65 \\ 13r=65 \\ r=5$

Redville gets 5 inches of snow.

6 0

3 years ago

76 m =<br> cm?????? Pls help I cant figure it out!!!

soldier1979 [14.2K]

Answer:

7600

Step-by-step explanation:

Because it is just x 100

8 0

2 years ago

Solving these quadratics for x using complete the square 3x^2-4x-1=0. Show your work.

UkoKoshka [18]

Answer: x = (sqrt(7) + 2)/3 and
x = ( – sqrt(7) + 2)/3

Explanation:

3x^2 - 4x - 1 = 0

Divide both sides by 3:

3x^2/3 - 4/3x - 1/3 = 0/3
x^2 - 4/3x - 1/3 = 0
x^2 - 4/3x = 1/3
x^2 - 4/3x + (2/3)^2 = 1/3 + (2/3)^2
(x - 2/3)^2 = 1/3 + 4/9
(x - 2/3)^2 = 7/9

Sqrt both sides:

x - 2/3 = sqrt (7/9)
x - 2/3 = |sqrt(7)/3|

Set x -2/3 = sqrt(7)/3

=> x = (sqrt(7) + 2)/3

Set x - 2/3 = - sqrt(7)/3

=> x = ( - sqrt(7) + 2)/3

6 0

2 years ago

Help?????? Does anyone know the answer to this

Rama09 [41]

I think it’s B, or 0.10x+0.15(50-x)=0.12(50)

Because 10% would give you 30ml, and 15% would equal 20ml to get 50ml, according to the equation.

5 0

1 year ago

A worker earns $5.15/h receives a raise. She now earns $6/h. Find the percent of increase in her hourly rate of pay.

Svetllana [295]

Answer:

The percentage increase in worker wages in hourly rate of pay is 16.5%

Step-by-step explanation:

Given as :

The Initial wages earn by worker = $ 5.15 per hour

The Final wages earn by worker = $ 6 per hour

Let The percentage increase in her hourly rate of pay = x %

Now, According to question

x % = $\dfrac{\textrm Final earning - \textrm Initail earning}{\textrm Initial earning}$

or, x = $\dfrac{\textrm $ 6 - \textrm $ 5.15}{\textrm $ 5.15}$ × 100

or, x = $\frac{0.85}{5.15}$ × 100

or, x = 0.165 × 100

∴ x = 16.5%

So , Percentage increase in wages = x = 16.5 %

Hence The percentage increase in worker wages in hourly rate of pay is 16.5% Answer

5 0

3 years ago