2 years ago

Also need help with this one

1 answer:

8 0

Let the width of table B be w, and since area of table A = area of table B, then 6 2/3 x 3 1/2 = 4 1/4 x w [this is the required equation]
20/3 x 7/2 = 17/4 w
17/4 w = 70/3
w = 70/3 / 17/4 = 70/3 x 4/17 = 280/51 = 5 25/51

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Help please! any1 know this

FrozenT [24]

The area of square: s · s = s²

The area of rectangle: (s + 6) · s = s(s + 6)

So:

s² + s(s + 6) = 56

s² + s(s + 6) - 56 = 0

Answer D.

8 0

3 years ago

Which angles are co-terminal with 3π/2 ?

irina1246 [14]

One is 3pi/2 - 2pi = -pi/2

also -7pi/2

7 0

2 years ago

If y varies inversely as x and y = 27 when x = 12 , find x when y = - 9 .

Sergio039 [100]

Answer:

x = - 36

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = 27 when x = 12, then

k = yx = 27 × 12 = 324, thus

y = $\frac{324}{x}$ ← is the equation of variation

When y = - 9, then

- 9 = $\frac{324}{x}$ ( multiply both sides by x )

- 9x = 324 ( divide both sides by - 9 )

x = - 36

3 0

2 years ago

The conversion of ammonium cyanide to urea is a second-order reaction. This means that the concentration C of ammonium cyanide a

sergejj [24]

Answer:

your answer could be A

Step-by-step explanation:

6 0

2 years ago

If 3 times a number is decreased by 12, the result is 5

Nadusha1986 [10]

3 times a # (# isn't specified, so you should use a variable): 3x
result is 5: =5
Put it all together: 3x=5

6 0

2 years ago